Holodkov Sensei is very knowledgeable, and always gets the best from his students. Several of his students are/were regional and national sparring and kata (forms) champions.
He also encourages his younger students (teens, pre-teens) to do their best in academics and in life. He has more of his former students graduating for high school and attending/graduating from the local universities than most of the local high schools in this county.
If you want an excellent workout, if you want to compete in local/regional tournaments, if you want to learn how to effectively defend yourself, please check out Holodkov Sensei's Karate dojo.
You will NOT be disappointed.