The Orange County Personal Trainer - Irvine, California

Susan Demirchyan

I really enjoyed working with David. He was always up beat and ready to teach me something new about fitness. His enthusiasm for his work is really contagious and makes you really want to just change your overall life around to meet your health goals. I recommend him to anyone ready to work out and put the work in because he will definitely give you one of the best workouts you’ve ever had. He is very good at explaining new workouts and making sure you feel comfortable. 10/10

Morgan Smolder

David is a superb trainer - I cannot recommend him enough! I trained with him for 6 months in 2022.

Throughout the entire period he was enthusiastic, knowledgeable, and positive. He is always eager to explain any aspect of health and fitness, and genuinely cares about helping his clients achieve their goals. Despite his deep knowledge and impressive physique, he is amazingly humble and very respectful.

When I first started training with David I was anorexic, had horrible posture, and very low strength. By the end of my time with him, I had put on 30 lbs of lean mass, gained almost 3 inches of height through posture improvement, and more then doubled my strength. David allowed me to vastly out perform my own goals, and ignited in me a spark and enthusiasm for health and fitness.

If you are feeling out of shape or have some other fitness goal you want help achieving, I strongly recommend David. He is a truly exceptional trainer and you will not be disappointed.

Sharpshooter 174

I’ve been working out with David for a couple of months now and I can definitely say he’s the best trainer out there. You can really tell he enjoys what he does. He’s very knowledgeable about everything related to fitness, working out, and about health. Any question I have he always has an answer ready for me. Not to mention you can tell he really cares about his clients and helping them as much as he can in order to succeed in their goals. He’s very flexible and understanding when it comes to scheduling as well. Within these couple of months David has really changed how I view working out. Before I would absolutely dread working out but now I look forward to it. If you are looking for a trainer than David is your guy because you’re not only getting an amazing trainer but also a friend as well.

Arthur Facredyn

David is the best! You can always tell that David has your best interest in mind. He is incredibly knowledgeable and has a science backed reason for everything he does. He is a “taker of his own medicine”. He doesn’t push you so hard that you want to puke by the end of a workout, but just hard enough that you know you’re making progress and come back for more. Best of all he’s an incredible human being and always super insightful to talk too. Long live David Miller!

Mat Richter

David MIller is FREAKIN' AWESOME! I've been training with David for several months now and my results are pretty amazing. Even with time off because of having Covid and a shoulder injury due to a biking accident, my weight is down significantly and my strength/capabilities are beyond what I thought possible.
There are so many things that one could say about David as a trainer, two of my favorite attributes are his truly immense knowledge of all things fitness and the fact that he's just so easy to work with. David Miller is the real deal trainer, with the education and experience to back up everything he does. If you're lucky enough to get in with him and you do the work you will see the results you want.

Jackson Gregory

David and I started working together sometime in January before the pandemic. He was incredibly nice when I first met him, and he’s been that same guy ever since. We have gone through periods where I needed to take my workout slow, and times when I was ready really take it to the next level. David can do it all, and above all else, he cares very deeply about you as a client and wants nothing more than to see you succeed and be happy and comfortable in your own body. I started my time with him at 270, and I dropped 50 pounds, as well as fixing a shoulder problem that had been bugging me for years. If you have goals you would like to meet, David is your guy without question, and I am very honored to have worked with him and to call him my friend.

Madeline Gabbriellini

I used to workout 6-days a week to keep fit and tone until 2020 when the pandemic hit. Gyms closed, trainers were nonexistent, I stopped working out and started gaining weight. I was lost to say the least. Then in April 2023, turning 61-years old, I decided enough is enough and started seeking out another personal trainer. I checked online and this is when I found David Miller. I emailed him to ask about availability and cost. He was so professional and accommodating with my hours and he gave me a great price to start. So, I booked our first session starting on May 1st, 2023.

David is probably the most knowledgeable trainer in all of Irvine. He takes the time to understand your goals, develops a comprehensive plan, to include nutrition, supplements, lifestyle habits, and most importantly, holds you accountable to yourself. His training sessions are intense, fun, and always careful to respect your injuries and stresses. Never pushes you too hard, but just to the brink as he takes the time to understand your capabilities. He also properly evaluates your strengths and weaknesses to make you better and stronger. Additionally, he pushes you beyond your limit to help you achieve your fitness goals.

In just 4-months I lost 30 lbs. and gained good muscle mass. I was so excited to finally be back on track as once before the pandemic messed it all up!

If you are looking for a Personal Trainer who is Knowledgeable, friendly, and motivating, I highly recommend David Miller!

Michelle D'Netto

I’ve been working with David for over 6 months and he’s terrific! He’s supportive, smart and goes out of his way to answer my burning questions about diet and exercise. He’s great at adjusting my workouts to accommodate certain injuries but also knows when to crank up the intensity. I’ve made huge progress with my overall health and fitness thanks to David. He genuinely cares about helping me reach my goals and our workouts are really fun!