Client Testimonials

“Never flakes. Never falters.”

Jerson has been a game changer for me – and for my husband. He has brought such consistency, discipline and creativity to our workouts at home. From getting us ready to climb Kilimanjaro to keeping us strong to face the everyday, Jerson has really delivered. Never flakes. Never falters.

Indoor, outdoor, gear, no gear. 100% or recovering. Jerson can train through it all. He mixes it up and motivates. As long as I show up, I’m guaranteed a great workout. Zero hesitation to recommend him to anyone.

“Increased my Overall Strength and Fitness”

I started going to Jerson’s training classes six months ago and have not missed a class since.  Jerson’s positive energy and encouragement is what makes me want to come back every day. He has the ability to push me to work harder at every class.  I began seeing results immediately, specifically a change in the definition of my figure. As someone who have been training all of my life, there are few instructors that maintain my focus and interest in a consistent way. With his high intensity classes; Jerson keeps his routines interesting and keeps workouts challenging and fun. I have also enjoyed the group support he fosters. This has been a trans formative experience for me and has drastically increased my overall strength and fitness level. After having two children, I wasn’t sure if it would be possible to return to my fitness level prior to having them. I believe that I am stronger today than I was before having my children. I would recommend Jerson’s class to everyone I know. There isn’t anything like it around… – Megan O’donnell

“Exceptionally professional”

Six months before I got married I hired Jerson as my personal trainer to help me get in shape and look my best for my big day.  Jerson was exceptionally professional and really helped me achieve the results I wanted. He gave me nutrition tips and also gave me lifestyle changing advice.  He was very flexible with my schedule, and made sure I got a full body workout each hour I spent with him. Overall I was very pleased with my Bridal Boot Camp and I would definitely recommend Jerson to anyone wanting to see results! – Mandy Ward

“Easy going and Fun”

For years I spent time in the gym doing repetitions without a clear understanding of how to make real progress. Various books and Web sites devoted to resistance training contradicted each other left and right. I knew the time had come to work with a personal trainer, and chose Jerson because his remarkable success as a competitive body builder made it clear he practices what he teaches. After six months of training with Jerson, my muscle mass is up, my body fat is down, and my motivation to continue is higher than ever. Because Jerson knows my goals are to get bigger and stronger safely, I trust him to choose how many exercises per session, how much weight to use, how many repetitions, how long to rest between sets. Same with nutrition: thanks to Jerson I know which foods to eat, when to eat and how much. Not least, Jerson is easy going and fun to work with. Whether your goal is to win a bodybuilding contest or just get into the best shape of your life, I recommend Jerson without reservation. -Keith Thompson

“More Fit and Muscular”

As a Nutritionist who has been athletic my entire life, I felt strong and fit walking into Jerson’s training classes for the first time. After 6 months of training twice a week I am more fit and muscular than ever before in my life! … I thought I had hit a fitness plateau, but Jerson pushed me beyond it! – Lita Collins

“Lost Inches and Feel Stronger”

Hi there, My name is Jennifer and I wanted to share my experience with anyone who is considering or looking for a personal trainer. I originally hired Jerson in March to begin working out with my Fiance, but after seeing the results in my guy after only a couple of weeks, I had to try Jerson’s workouts for myself. I have only been working with Jerson for 4 Months, but already I have lost inches and feel stronger then ever. I just turned 37 this month and had been noticing that my normal routine and diet were no longer cutting it. I have always been in great shape and I was worried that I would never get my body back into the shape it once was. I can say without hesitation, that I can see that will not be the case while working out with Jerson. Jerson is committed to helping you be your best. I leave each workout knowing that he pushed me to my fullest and I feel proud of myself after each session, something I rarely feel when working out alone. I will be keeping you all posted with my progress and I encourage you to contact Jerson and try a session for yourself. It was one of the best decisions I have made for myself.- Jennifer Ray

“Guidance and Knowledge”

Jerson has been my personal trainer for 10 years. He has helped and guided me to attain my health and fitness goals. With his guidance and knowledge, I have been able to change my body composition to have more muscle and less body fat. Jerson’s suggestions for my diet and exercise program, have worked extremely well for me. He is able to adjust a person’s exercise, supplementation, and diet program based on their needs and goals. I have recommended Jerson to others and they have achieved great results. – Leah Martin

“Kick Ass Trainer!”

I have been training with Jerson for almost 1 year now on and off and I love it!!  He makes it challenging every time I take his class! He mixes it up which is nice because I get bored fast!  I love the gym and the location. He is flexible and very helpful with my schedule. Jerson is a kickass trainer!! All I can say is PUSH_UPS! be ready for them…you arms and shoulders will look so good!!  I can’t say enough about the class and Jerson both A++!  If you want a great workout and a dedicated trainer…Train with Jerson!  – Cristina Deville

“Life Changer”

Jerson has changed my life in so many ways. I started working with Jerson about two years ago after I had my second child. I began by attending his Amped Class (TTH) at The Bay Club Marin and then became a fan of his smaller Hard Bodies class (MWF). I will never forget my first hour in Amped when I was in the back row about to fall down and give up. Having two young kids was workout enough for me! With Jerson’s support, fun attitude and incredible knowledge about exercise I continued to get stronger and build my endurance. I now workout four to five days a week with a fabulous group of women. I enjoy my spot in the front row, a place I never thought I would be. This hour gives me a great workout, laughs with friends and empowerment from the best trainer in Marin, Jerson! My hours are never wasted when spent with this inspirational and talented trainer. The bonus of all of this is I am a better Mom and feel fantastic every hour of every day. These are my hours and because I don’t get much time to myself they are VERY important to me. Thanks Jerson for making my hours with you count! Your biggest fan, -Deirdre

“Exciting and Original”

I have been working out with Jerson approximately 4 days a week for almost 5 years now. When I started I was in pretty good shape but I had hit a plateau and could not seem to tone my body any more. I had been pregnant with twins and on bed rest for 3 months. This caused my body to become severely out of shape. Fast forward now 5 years and my body has had huge changes. I am now toned in spots on my body that I never was before and I swear that my butt has lifted a few inches. His classes are more than a work out for me however. They are my daily meditation. I look forward each day to going to a class and letting any stress go while we move to great music. Each class is new, exciting and original. Jerson, you can never move!! I don’t know what I would do without you.

“Highly Productive Workouts”

Training with Jerson has been a welcome change of lifestyle for me, with regular exercise, including highly productive workouts including weight training. Jerson has combined workouts with a suggested diet that he modifies depending on our goals of weight loss, or muscle gain, followed by a “leaning out”. I have been able to lose 25 pounds of fat, gaining back 10 pound of muscle while remaining lean and enjoying a more healthy and productive lifestyle. Even when traveling for business, I have been able to employ Jerson’s suggested diet, exercise, and supplement program. I would recommend Jerson for training for anyone who would like to attain a fitter, healthy lifestyle. – Kirk  Martin

“Makes Me Feel Proud of Myself”

Jerson’s energy, endless smile and good nature shows he truly cares about his clients.  “I love, love, love Jerson’s Personal Training!  Jerson is a very talented guy who will inspire you to change the way you think about exercise.  I love how much stronger I am and get so excited when I can do things I’ve never done before due to my new found strength.  Jerson makes me feel proud of myself.-  Danielle Danio

“The Results are Incredible”

I LOVE Jerson!

When I started working out with Jerson I was a gym newbie. I had always run and taken yoga and Pilates classes to stay fit and keep my weight down. After my second child was born I knew I needed to step it up and do something different to get my body back to where it should be.

I started working out with Jerson two years ago in his Hard Body class. I was one of the first people to join his class and commit to coming on a regular basis. Mind you, I had barely done a squat, lunge, or bicep curl in my whole life, let alone do a push up. In fact, Jerson had to demonstrate what a burpee was for me.

After the first week, despite the intense pain, I was hooked. I could feel and see my body transforming before my eyes. My arms had muscles I never knew existed, and my legs and butt were much tighter than I thought possible.

I stuck with Jerson and committed to three days a week. The results are incredible. I not only look different, but I feel amazing. I have much more energy than I did before, and I am stronger than ever. I can honestly say, my upper body is stronger than it was in high school when I was a track and cross country athlete. I can also do as many push ups as he dishes out, and am pretty solid on burpees as well.

Jerson has a way to make every work out fun. Just at the moment when I think I might die he changes it up he he switches to something new. No two workouts are the same and the pace is always energetic and upbeat. It is a true testament that I come back again and again and have done so for more than two years.

I have become so hooked that I now work out with Jerson 5 days a week most weeks. His style is truly addicting, and I can’t imagine any other type of workout that would give me the same results in as little time. – Annie Riedel

“Attention to Detail”

As a chiropractor with a sports practice, I have been repeatedly hearing about Jerson from my patients– how fast he could help you achieve results, how likable he was, and motivating and knowledgeable about leaning out and getting strong. I wanted to see for myself, so I began taking his training classes 3 times a week. I am pleased to say everything I heard was accurate, he’s terrific! I especially appreciate his attention to detail, always monitoring my form and keeping the workout fresh to stimulate the muscles in different ways and achieve results as fast as possible. As hard as we work out, I have never been injured. As well as maintaining a busy practice, I am a mom with 2 little kids at home. Jerson’s skills make it possible to get a complete muscle workout as well as an intense cardio session in the limited time that I have. I am seeing my pre-baby body again and it’s great! Nothing has worked so quickly before. Thanks Jerson! – Dr. Rina Tinozzi

“Creative Workouts”

I have a busy schedule that includes frequent travel and Jerson has proven to be flexible in coordinating training sessions so that my fitness goals can be met.  He is knowledgeable about nutrition, fitness and is creative in his workouts – providing variety and always monitoring correct form – Joan Dauria

“Totally Transformed my Body”

I am 40 years old and have two kids. I have always been active and considered myself to be lean and fit. After having kids it became more difficult to get regular workouts. My muscles disappeared and I was feeling flabby and weak. I was never a fan of group exercise classes but always noticed a long line of fit women waiting for Jerson’s AMPD class and decided to give it a try. I became instant fan. It’s a total body workout every time. I loved it so much I also tried his Hard Body class which is really awesome. AMPD combined with Hard Body have totally transformed my body. Jerson has a deep understanding of physical fitness, I trust him and would definitely recommend him.  He is motivating, plays great music and makes every class fun and different. With his help I am stronger than ever before, more energized and feeling fit once again. Thank you Jerson! – Suzy Raskin

“We Laugh a Lot”

Jerson and I met in June. I had ruptured my ACL and let my fitness slide. I was scared of re-injury. I also had gained 30 pounds. Jerson listened carefully to my goals. After training twice a week for one year, I felt very fit and strong. I had already lost some weight, and Jerson helped me with diet and nutrition. One year later I had lost those 30 pounds. I WENT FROM SIZE 16 TO SIZE 8.  Jerson challenges me with exercises I wouldn’t attempt alone; he knows my limits better than I do. He mixes it up for a new workout every time. We laugh a lot, which was missing when I exercised alone. I recommend Jerson to a person of any fitness level. – Jessica

“Your Body Will Love You For It”

If you are looking for a fitness trainer that will get you hooked, Jerson is it! Because Jerson’s class is fun and NEVER boring, it is SO easy to get myself to class. His music choices and his coaching get you movin’ and workin’ parts of your body, you didn’t even know you had!  I LOVE working out, but even if you don’t love fitness as much as I do, Jerson’s training is so much fun, the hour will fly by without you even knowing it. So stop making excuses and get yourself to class, it’s so worth it and Jerson will make sure you get the results you are looking for. Don’t delay, your body will love you for it. This is truly the BEST fitness trainerc I have ever had, and I have done them all! – Freea

“Pushes you to do your best”

A few years ago my daughter was getting married.  I was a runner but wanted to get more in shape so I took a training class from Jerson.  I was hooked.  I have followed him to 3 gyms and 7 years later still love (and hate) all of his classes.  He works the entire body and you feel that you have gotten the best workout.  In every class he pushes you to do your best and always mixes it up so you never get bored.  I have lost inches, built muscle, increased my strength and all for 1 hour 3 days a week.  It’s the best. – Kathy Easley

“I Feel Strong, Athletic and Healthy”

I got introduced to Jerson’s AMPED class after seeing all these women leave his class dripping sweat and I was like “I need to start taking that class.”  After one class – I was hooked.  After having my third baby and trying to lose those last 10lbs was really hard but after starting his AMPED classes, I was seeing results both in losing weight as well as getting stronger within a month.  After seeing how well his AMPED class was working for my body – I couldn’t pass up a free trial of a HARD BODY class.  I, again, was hooked (or more like addicted).  I started off 2013 with a goal of taking a Jerson class 5 days a week.  That really took up my fitness to a whole new level.  Jerson’s classes are so challenging but he has a way of making them fun.  He has a perfect way of motivating the class.  The energy and music are always so upbeat and positive.  He always makes me feel as though I have gotten such a well rounded workout.  I have since reached a weight that I feel good about but what makes me feel even better is how strong, athletic and healthy I feel.  My whole life I have been a very active person – it’s just what I like to do however, I have never found an instructor that is as fantastic as Jerson. – Allison

“Great Motivation”

I am a dancer that has been athletic and physically fit my whole life, training as a martial artist and then as a classical Ballet dancer. Recently to stay fit and athletic I have been taking Jerson’s Fitness training class about twice or three times a week. His workouts are fantastic for covering every muscle in your body. It is important to do a full body and high intensity workout to stay in top shape. Sometimes I find it difficult to motivate myself to do a vigorous workout on my own, but now I know I can always get Jerson to help with that motivation. Training is not only physically beneficial, it is also really really fun! Jerson  does fun obstacle courses, and attracts very fun and lively people into his training. I Love It!” – Margaret

“Tailor Made Workouts”

I love training with Jerson because he’s always down for the moment. Whether it be a pep talk, extra squats or doing 50’s, Jerson’s workouts are always fun & tailor made to fit my own personal needs & goals. Even when I’m not working out with Jerson in the gym on a regular basis, I feel as if the positive attitude of his training style will always be a part of my life. – Krickie