I've been training with Sensei Os for 6 months and I gotta say he is THE best judo instructor you can get here in Madison and even in the Midwest. He is a 8th-degree black belt and an Olympic level coach. He used to train with the US Judo Olympic team and if you come to his school you can see his involvement with all the big names in Judo, Kayla Harrison, Marti Mallory, Rouda Rousy, etc and he himself had many accomplishments in competitions internationally. He teaches many kids as well and for them he is not only a coach but also a grandfather. If you are interested in learning Judo this is THE place you would go in Madison.