Good teachers, good people. I haven't met anyone from mango tree who wasn't happy with the training they received.
I know the owners and would never go there.
When they were working at UFC, Richie would always try to puff his chest when walking past me. Mrs. CMO noticed it, as I was too busy focusing on my weights. He does so probably cause his wife is always trying to get my attention, but I don't give her the time of day. Mrs. CMO noticed this about her as well. As I continued to ignore her, she would try even harder.
Then after a while of me ignoring Richie, he then did the same to Mrs. CMO. Of course it wasn't when I was around or near her. She would tell me as we were walking out of the gym together.
As for his knowledge about MMA, he is very knowledgeable. I know some guys who saw him fight and said he fights like shit, but some people are better teachers than do-ers. Like Tiger Woods is a great golfer, but a shitty teacher. His coach is a great coach, but a shitty golfer.