I've been doing mobility and strength training with Jonny at this gym for the past 4 months, and I honestly can't believe the difference it's made - not just in my body, but in my mindset and confidence. I started training because I wanted to stop feeling weak carrying my groceries, and to build functional strength (for both the present day me and my future 80 y/o self). I've had a spinal fusion and other injuries, so I knew I needed someone who could guide me safely and intentionally. Jonny has been that person and so much more. He's knowledgeable, kind, and dedicated to his clients. He truly wants to see you thrive - and he's also the best hype man when you need that extra push! Before this, I was totally intimidated by gyms. But this space is different. The energy is welcoming, relaxed yet focused, and supportive. Also located right off the 5 fwy, with plenty of parking. If you're thinking about starting, especially if you've dealt with injuries or just feel unsure where to begin - I can't recommend Jonny enough. Built Different is my favorite place to lock in read more

UPDATE (AUGUST 2026) I'm updating my original review because unfortunately my experience changed significantly over the two years I trained with Jonathan Brown (Body by Jonny). Based on my experience, I can no longer recommend Jonathan due to what I consider unethical and poor business practices. During what I didn't realize would be my final training session, I showed up mentally and physically exhausted. I pushed myself as far as I could but didn't have the energy to finish the full hour. I told Jonathan I wasn't feeling it, wished him a good weekend, and left about 15 minutes early. A short time later, I received a text from Jonathan stating that I was no longer welcome as a client, without any prior discussion or explanation. At the time, I had prepaid for 36 private training sessions and had 15 unused sessions remaining. Despite Jonathan being the one who terminated our training arrangement, I received only a partial refund--approximately 41% of what I had paid for the remaining sessions. When I questioned the amount, he essentially told me that I had already been given a good deal and that "the least" I could do was not give him attitude. I never negotiated his pricing or asked for a discount. I simply paid the rates he quoted me. Whatever price a business chooses to charge does not change the fact that I prepaid for services I ultimately did not receive. I was also never provided with or signed a contract stating that unused prepaid sessions would be forfeited or refunded at a reduced amount if he chose to terminate the training relationship. What I learned from this experience is that a good price isn't a bargain if it comes at the expense of the service, professionalism, and business practices you're paying for. Based on my experience including the abrupt termination and failure to fully refund my unused prepaid sessions I cannot recommend Jonathan Brown or Body by Jonny. read more

I've been training at Built Different Training Facility with Jonny since February and I love it. The gym has everything you need, and the vibe is super chill--no egos, no bro culture, just real people putting in the work. Working out with Jonny, I've been losing weight and gaining muscle, and I can really feel the difference. Highly recommend if you're looking for a supportive and down-to-earth place to train. read more

Built Different Training Facility - Gyms Near Me - Santa Ana, California

I was looking for a personal trainer and found these guys so I decided to just pop in and see if I thought it was a good fit. I'm so glad I did! Jonny made the time for me on the spot and was able to help me get in there and get a workout even though I have never been a gym goer. He's able to customize for my needs and, best of all, he's been accommodating my FIL who has Parkinson's and needs to exercise but didn't know where to start because he's so tired and has lost so much strength. Jonny will meet you wherever you're at and give you the tools to get where you want to go. read more

Johnny is the kind of trainer who inspires you from day one. His energy is infectious, and his commitment to everyone's success--physically, mentally, and emotionally is unmatched. He's helped transform my body and get me back into shape, and I couldn't be more grateful. read more

Started training with Vanessa January 2024 and it's been a life saver. I have not only become disciplined in my routine with Vanessa and going to her three times a week but I've also met so many wonderful like minded individuals. The gym is not intimidating, it has a welcoming vibe and plenty of equipment to use. Vanessa is great! read more

The gym is always clean and organized , which makes it a motivating place to train! My trainer Vanessa is amazing. She takes the time to correct your form and technique, making sure you're doing each movement the right way. That kind of attention really helps, especially if you're focused on getting stronger and avoiding injury. Joining this gym and working with Vanessa has truly been the best investment I've made for myself. read more

I have trained at this gym with my trainer of 10 years Jonny Brown. The vibe is get it done and no posing! All the equipment you need and a shower if you need it My trainer also gives boxing lessons which is not easy to find! Jonny is experienced , kind , and patient. Whether you are 25 or 65 like me he will challenge you and get you to your goal! You goal may be weight loss, better strength or balance , increased flexibility, he can get you there. Plus he is just a lot of fun! read more

Johnny brown is amazing after taking me on as a client it's been less than a year and my body has transformed so much!!! Love coming to this gym and feeling so welcomed and comfortable! Everyone there is so friendly, it's an amazing environment to grow and achieve your goals! read more

Built Different Training Facility - 2 months into my fitness journey - Gyms Near Me - Santa Ana, California

Equipment is very clean + organized. Has good fans / ventilation -- no stinky smells! The atmosphere is really cool so I keep coming back because then I feel cool. I like the variety of machines + how friendly all of the trainers are. Something about the design of the gym helps me lock in every time I train. Music is usually good. Hot people to look at. read more

Built Different Training Facility - Gyms Near Me - Santa Ana, California

I switched from going to a regular gym to built different just earlier this year and I can definitely feel what a difference it is. Built Different is a little smaller than your average gym but since it is more of a private and sleek gym there are more open machines which helps you have a more effective work out instead of waiting around for something to open. The atmosphere is dark and can be intimating for a first-timer but they also play really good music and everyone is welcoming from the clients to the trainers. I was never interested in my own personal fitness until I was assigned to Zeb who always listened to my concerns and made workouts that would not only give me results but still lets me feel comfortable in my body. He is always cheering me on when I want to give up and has shown me time and time again that I am much stronger than how I see myself. read more

The gym is clean, well-organized, and has all kinds of equipment to suit any workout style. A special shoutout to my trainer Vanessa, who is absolutely amazing! She is incredibly motivating, pushes me to do my best, she corrects your form and has the best wellness advice and tips! I've been training with her since Oct 2024 and it's been the best decision I've ever made! read more

This November will be 3 years with Vanessa and have zero regrets training with her. Not only does she help me hit my goals but she genuinely cares about me and all her clients. Built Different Training Facility is truly a welcoming gym to everyone and just a great community of people in general. Everyone is super supportive and sweet. Thank you Vanessa for continuing to be my trainer through my fitness journey. I highly recommend her. read more

I've always been intimated to go to the gym but at Built Different Training Facility I felt very welcomed. I train with Vanessa and she's the sweetest, she doesn't only care for you as her client but she cares for you on a personal level as well. She takes her time to correct your form and she's encouraging through every set. read more

Looking for a trainer that's a girl's girl, turns into your therapist, and makes you feel good from the inside out?Vanessa is your girl! I've been training with vanessa for a little over a year and it's been the best decision i've ever made! she's helped me build strength, make better food choices, and gain confidence. She pushes you to be your best and has built the best community of strong girls that will also cheer your on. She's 1 of 1 and the best there is! read more

Love this place! Vanessa is my trainer and I've been seeing her for the last few months. She's very knowledgeable and takes her time with you during your workout. I love how comfortable the atmosphere is. I look forward to my workouts with her! read more

Stay clear from here I had a horrible experience. They are rude and discriminate against you. They made me feel like I was a nobody not a paying customer and the area is really bad. read more

This has been a long and overdue review! Koach K is the best. He modifies my workouts due to a fractured foot that never healed. All the trainers there are super nice and I haven't felt judged by anyone in the gym. Can't wait to go back and train with Koach K after I'm fully recovered with my medical issues. read more