Our 2 kids went here and enjoyed every class. The facility…read moreis clean and climate controlled. The instruction is top notch and there's enough parking. Rates are very reasonable for what you're getting. Don't hesitate to check this place out!

Holmgren's Black Belt Academy is truly a special place. I drive from Ridgewood to Allendale two…read moredays per week, passing many other studios on my way. The owner, Marty Holmgren, has a real gift for working with children of all abilities. He is firm with the children and offers an abundance of praise at the same time. I would recommend this karate studio to anyone.

I have trained at a few gyms and NVBJJ is my new home. Professor Carl has a structured curriculum…read moreand shows advanced techniques since he is still training and learning with top level guys. The crowd here is competitive and will get you where you want to be.

Professor Carl Massaro is easily one of the greatest instructors I've ever had. I know it seems…read morelike a polite thing to say about your professor, but Carl Massaro is the REAL deal. High level instruction in a beautiful facility conveniently located in Northvale, N.J., combined with instructors and coaches who go above and beyond at a moments notice. Regardless of what your goals are, this is the room you WANT to be in. Renzo Gracie Northern Valley has become a home away from home for me, and my training partners have become family. I love and believe in the art I learn, and it's all thanks to prof. Carl and the staff at Renzo Gracie Northern Valley.

This studio has been such a positive influence on our family. Enrolling our boys here has been…read moreabout so much more than learning martial arts -- it's been about helping them grow as people. The instructors truly care about the kids and consistently reinforce lessons about respect, self-control, and perseverance. We've noticed our boys becoming more attentive, more disciplined, and much more confident in themselves. They take pride in setting goals and working hard to improve. It's great to see a place that focuses just as much on character and mindset as it does on technique. We're very thankful to be part of this community and would absolutely recommend it to other families.

We have been very happy with Absolute Martial Arts for my son (5). Master Chris and Master Mike are…read moreboth great with the kids but so are the younger instructors who help out. They make the classes fun with music but the kids also work hard for the 30 minutes. The belt colors get the kids so excited!

I can't even get a call back to confirm our class and it's been over a week. I called a little over…read morea week ago to inquire about classes and was told a day and a time to come for a trial but that I would receive a call back to confirm. No call back. I called every day for more than a week and no one picks up the phone. Finally I spoke to someone who said the studio is closed all day until 4 pm, then there are classes happening and no one picks up the phone. He said it was very disorganized but promised I would receive a call back. The proposed day is tomorrow and still no call. I wish I would have had the opportunity to enroll my son, but it's probably for the best if you can't even get someone on the phone. I can't imagine trusting my child with a studio you can't even get in touch with.

This place is AWESOME! My daughter loves it here. Master Smiere (sorry if I misspelled it) and his…read moreteam are patient and professional with the lil ones. They have fun but learn discipline which is exactly what we wanted. I would recommend this place for all age ranges.

Terrible place to come if you want to feel included. Sensei seems nice at first, but then makes…read morecondescending remarks in a slick way to try to disguise his disrespect. He allows bullying from the hasidic jews to go unchecked. We have observed several of the jewish children mistreat children of other races and Sensei issued no corrections and allowed it to happen. Not a welcoming environment at all and very dissatisfied with the clear favoritism being shown. It's almost as if sensei is scared of saying something to the parents of the jewish kids.

My 6-year old son has been attending Little Ninja classes at Power MMA Krav Magra for 4 sessions…read morenow and I cannot say enough great things about the program and Sensei Yuri! The program promotes fitness, confidence and respect of oneself and others in a positive and fun learning environment and my son has thrived with each successive session. I have been so impressed with not only the Little Ninja program (which, as I mentioned, goes beyond karate and teaches respect of one's parents, healthy eating and exercise habits, discipline, etc.), but also with Sensei Yuri who has the unique ability to pull the best qualities out of each student. His way of teaching is one that is fun, but treats each student regardless of age as one who must give and must receive respect. He is not afraid to expect the best of each student, and the students thrive! I'm excited for my son to now go to the next level of classes and also for our family to check out the other offerings at the school. The school has fitness programs for men, women and children (such as self defense, dance, piyo, etc.) and it's worth mentioning that many of the classes are sensitive of the needs of Orthodox students. While we are not Jewish/Orthodox, it is heartening to me that a student who is more comfortable with a male or female only teacher/class can choose that, or they can choose a unisex option depending on their comfort level, religious requirements, etc. There's lots of parking and the hours are great, with late hours and weekend hours for people who work/have school. Definitely check out a trial class at this school! The skills learned at Krav magra are not just for show--they are supremely useful for self defense and I think a great option for anyone of any age interested in martial arts.

Our son has attended the Shido-Kan Karate school for about a year and a half, and we have to say…read morethat Sensei Mitch is just great. He pushes the kids to be better and considers their experience level when matching the kids up for Fight Club or sparring. He encourages the kids to push themselves, and some might be offended that he's tough, but that's exactly what we wanted so that our son can train appropriately. Bullies are everywhere, and we want our son to get the right kind of training so that he becomes physically and mentally tough and can defend himself, but at the same time use his skills responsibly as Sensei Mitch teaches. My son started as the shortest kid in the class and Sensei Mitch kept pushing him to be better, and matched him up with bigger kids within a belt or two of his experience level. My son enjoyed his experience and continued to look forward to each class as development opportunities (and just plain fun). If the kids are too mismatched, then Sensei Mitch instructs the more experienced kid to just defend themselves and not overwhelm the less experienced students. Some people might be offended by this approach, but it makes sense to me and offers a challenge to the less experienced kids to get better. I've seen Sensei Mitch responsibly encourage the kids to do better and stops the various fights to give a demonstration of what could have been done better or to offer advice on technique. The Oakland review below was a little surprising to me as it seems very off in perspective (and not even the parent!). We videotape our son's fights/sparring/katas to show him what he's doing and to allow him to learn from his experience; and other parents do the same for their kids. We've seen Sensei Mitch discipline kids (even my son has been disciplined numerous times -- push ups, run laps --and now fidgets less in class and pays attention more), but we've not seen it done inappropriately for all the time our son attended. I get it that some people might be offended by some of his teasing, but get a grip. If you have an eggshell personality or particularly PC, life is going to be very tough on you (and likewise your kid). Everything Sensei Mitch does seems appropriate to toughen the kids, and many have stayed with him for many years. Even then, Sensei Mitch reminds the kids that they are learning a valuable skill but need to use it responsibly even if the other kids tease them (and also to remind the kids to thank their parents for the opportunity to learn Karate). "Don't you ever be the bully, but be ready to defend yourself if the other kid throws the first punch." Now what parent wouldn't want their kid to learn these valuable skills so that their child grow up able to responsibly defend themselves (and have a fun time sparring with other kids to hone their skills)? We highly recommend that parents check out the Shido-Kan Karate school in Mahwah, and watch the Fight Club sessions on Friday evenings.

When we moved to New Jersey, I was looking for a sport that would help build confidence and…read morediscipline in my son who's not the traditional athletic type. Definitely found it at Shido-Kan Karate. Sensei Mitch is tough in a way that makes kids feel proud and accomplished when they get things right--and determined to work harder when they get things wrong. Not going to lie, he's very tough! I was wondering if my sensitive, emotional son could handle the critiques. Not only can he handle it, but he's shown immense personal growth in learning to navigate challenges and raise expectations. He leaves every class feeling stronger. I also think it's helped him to deal with some bullying at school. I'm very happy he's sticking with karate at Shido-Kan.

PROS: I've been coming here for a few months now and this place is amazing. Great instructor that's…read moreexperienced, equipment is all good quality, loads of parking, affordable prices. CONS: The place is a bit messy and can use a cleaning OVERALL: Definitely love coming here and would recommend this to anyone looking to do the art

Tony does a great job with his students. My 10 year old is learning self-defense skills as well as…read moresituational awareness while boosting his self-esteem. Tony clearly cares about his students and wants them to be prepared to safely de-escalate conflict.