I went to this camp in LA. Knocked my socks off my bare feet! I'm a black belt and I've been training for 15 years. I've trained with a lot of wonderful people. I have never trained with 4 world champions on the same day in the same room. If you've got an problem with your technique there WILL be someone in that room who's gone through it too.
My hat is off to the Gracie Humaita Women's team. They are an aspiration.