I have never met Mr Burt Goldman Personally. I have come across some of his material. And I know the person I've had contact with thinks highly of him. In reality all that doesn't matter.
It's your money so why don't you contact Mr Burt Goldman and just introduce yourself to him. Mention that you are considering his class and would like some sort of overview. He or if he has an assistant should respond and from there check out how you feel about the course, the information they give you and how you feel about them.
In my experience every Silva instructor is very approachable and Bert did teach the Silva Method for many years before deciding to move on to the Ultramind system.
Alex