We absolutely love UTC! My kids have been attending for 4 years and they have learned and…read moreprogressed so much. They always look forward to going to class and working toward their goal of being a black belt. The instructors are awesome and they have made a big impact on my kids with their classes and also life lessons. They are patient and great at meeting each child's individual needs. The adult classes are great as well. I highly recommend this dojo.

I love it at this gym, the adult classes are so great and master Gutierrez is an amazing taekwondo…read moreinstructor. The Muay Thai classes with Tim are also a great workout and will get you hooked in no time. A lot of things to learn and this place does an amazing job at teaching you.

I've been bringing my son to Kumgang Taekwondo for since we moved to Mountain House and he has…read morelearned not only discipline, but self control and gained in his self-confidence. He respects us more and is very helpful around the house. Not only do they teach the skills for taekwondo, but they also do some meditation and talk to the students about respect and discipline. We will continue for many more years at this wonderful school.

From the owner: As a school, we develop a student in respect, self-discipline and leadership. We practice…read moretraditional taekwondo from Korea, through Kukkiwan, World Taekwondo. Our practices focuses on forms, self-defense, and sparring. We are a part of the North California Taekwondo Association and participate in competition. We accept ages 5 and older after assessment.

I wasn't sure what to expect since I've never been exposed to martial arts. I purchased a Groupon…read morefrom this business to give it a shot and see if it was something my son would be into. My first impression with this place wasn't the greatest. The first time I took my 4 year old son the instructor was late and didn't check us in or explain much or how their program worked. However, the instructor was great with the class. He was fun as engaging and really got the kids going. At the end of the class one of the younger instructors was there and I mentioned it was my first sons first time. He helped get us registered and went over the check in process. At the end a lady finished getting us setup and gave us the T-shirt that came with the Groupon. This put some ease into my first impression. Throughout the next few weeks my son went 2x a week and a few of those times the instructor was late and one time there was no class because the instructor was sick but we weren't even informed. No email or anything. With that said I will say my son enjoyed it and it appeared all of the kids enjoyed it as well. I will say that I am disappointed that I wasn't able to use the last few classes that came with the Groupon. I was told it expired and that I would need to register for their regular fees. No where on the Groupon website or fine print does it say there is a time frame in which the classes had to be done it just said 16 and that you couldn't have us a Groupon in the last 12 months. There was a push even at the beginning to go with their promo as opposed to the Groupon but I wasn't in a rush since I wanted to check it out first. This experience had some bumps. If you buy a Groupon get clarification because there is no indication of a timeframe. Although we've had some up and down experiences I can see where this would be great for kids. Also looks like they'll be moving to a bigger location which should be good since they have quite a bit of students.

I was told by one of my friends that attend that I should sign my children up. They gave us a…read moretwo-week pass and I took the kids and they loved it we have been going for maybe about a month now and the kids enjoy it very much the atmosphere is amazing especially since three of my kids have autism. Miss Jamie Miss Christina very nice helpful and understanding and the class has been very beneficial to my children they're excited that they get to learn new things and everyone there is equal!

My son has been going here for 4 years now, he started when he was 6 yrs old. I am so glad we…read morefound this gym, Sir is a great instructor and the whole RMA team is a wonderful 2nd family to us and my son. My son gained self-confidence and great knowledge in martial arts. Sir, is very hands on and dedicated to his students. The warm, friendly environment makes it really fun for the students.

Amazing teachers, family owned and friendly and teaches kids great self defense. They offer many…read moretime slots and personal classes. The team is strong and competitive in tournaments. Great for all ages.

Great school for kids of all ages, parents of all ages too! :)read more

My younger brother had started here when he was young, about 6 years old. From day one, he showed a…read morelot of interest in martial arts and began to do better academically. He is now a black belt and has great experience in Olympic Sparring thanks to the Koryo family! He now not only shows his maturity amongst his sparring partners but to others outside of the facility. I would highly recommend anyone with any interest in martial arts to the Koryo family. They are nothing shy of there name, they will become your family! Thank you for all that you do!

My son loves Master Park! We have been trialing other places in Tracy, but always come back to this…read moreone. They are POSITIVE, clean, and everyone is so nice, professional, and friendly! Most importantly..it makes my son happy. Only thing is, I wished they had a month to month contract. I definitely recommend this place!

This place is all about the money they charge the students they really don't honor their promises…read moreto give the make up classes. We are moving and we are for make up classes which they promised to give at the end of the contract which they are no honoring these people are liars and just greedy for money.

I personally have never been into martial arts. I've always heard positive things from parents that…read morehave their kids in taekwondo. I had checked out Robinsons in Lodi before, but I wasn't a huge fan. However, Cutting Edge has been something totally different. I really see the passion these instructors have for what they teach. I like that they're attentive to the kids, teach them to be disciplined, and teach them other important values. They don't play with nonsense, but will be patient with kids that aren't listening and talk to them in a caring but firm manner. I love the way they put on belt testing for the kids. It was such a cool thing to see. My kids love it and I love seeing my kids learning something that they enjoy with instructors that have a true passion for what they teach.

Our grandson takes classes here and we could not be happier with the way that classes are run, the…read morecare that the owner and instructor give to the children, the discipline that is taught and the pride the children have in their accomplishments. Great place to send your children!