Without a doubt, the BEST jiu-jitsu gym I've ever seen! There must be 15+ black belts, numerous world champions, and plenty of people at all other levels too. The instruction is always clear, even on complicated movements. And I don't think there is a more dedicated group of sport jiu jitsu guys out there. Even the white belts are really good!
If it is at all possible for you to train here, you really sbould.