Tug, are you talking about the same place? I found they welcomed questions and also discussions although of course they had to be limited, and often continued in breaks due to the sheer volume of work to cover.
I found the teaching excellent, Danny Latham can explain things so that even I can understand them and I found Pete Lines and Pete Quinlan to be very good at their stuff.
Their pass mark is very good, the set up good, and I would say it is very, very unlikely they would go bust.