Erik is one of the most generous and giving coaches I've ever had the good fortune to train with. Yes he has some very odd ideas about life and the world, but he is an absolute genius when it comes to martial arts (striking as well as grappling). Who else is going to show you a crippler cross face that actually works? Also CSW Fullerton is one of the coolest and safest gyms I've been to. I think like Hannibal says it depends on how well schools stick to the student level programme, which is a very well thought out syllabus (my only gripe is that personally I feel it needs a little bit of half guard in the 1-5 syllabus because it's hard to get full guard if you have no half guard game). Erik gives so much it's easy to end up with novice students doing leglock chains if you don't stick to the syllabus.