I don't personally have them as it's my son that trains with them. But I do know he has several guys training in there right now for some big fight coming up. Everyone I know that trains with them has nothing but good things to say. It's worth at least going to check it out. He may even give you a trial to see if you like it or not. This BBA is VERY different then the others in California and Leonardtown. Plus his MMA program is not affiliated with his tae kwon do classes. He does MMA separately in the back of his TKD studio.
Sounds legit. Royal MMA was kind of the same way. The TKD class was the typical McDojo/black belt in 3 years/ pay for your belt type stuff but the MMA class was very serious.
Can you ask your son if they do pure BJJ classes? I don't really have a desire to do MMA, I have enough martial arts related injuries.