And their site has a link to the Wikipedia article on McDojo and the advice to avoid those.
Kyuryukan Jiu-Jitsu is an eclectic (free style) martial art developed from Japanese and Brazilian Jiu-Jitsu, Judo, Karate, Kick Boxing and other disciplines. It employs strikes, punches, kicks, throws, chokes, joint locks, restraints, and weaponry for self-defense and sport.
It is a complete martial art that encompasses all aspects of defense. Other systems specialize in only one or two. Karate, Kung-Fu, and Tae Kwon Do stress the punching and kicking range, while Jiu-Jitsu and Judo are grappling arts. It has been said that the ancient forms of martial arts were once complete systems, but they became fragmented because they were difficult to teach as a whole.