I attended the first course last Nov. At the risk of embarrassing Peter, the best way I can comment on it is to quote from an email I sent him shortly thereafter:
"I have never been on a course before where the presenter was so enthusiastic about his subject. Not only did it shine through, but it never faltered even into the two hours of extra time and beyond.
"You may be interested to know that I have put your principles to work immediately, and over the weekend and today had 13/13 winners!! Only £2 stakes, so most of the winnings are in pence (9 under 10p), but an excellent learning exercise, and most encouraging, although obviously some of that is down to good luck rather than good judgment!
"One of the things that has particularly struck me is the wisdom of taking tiny chunks out of the market regularly, even at the lowest of odds. Previously I had never even considered going for one tick, especially at low odds, seduced as I was by the large gains apparently offered at long odds - now I know better!"
The only proviso I would make is that you 'must' learn how Betfair works, especially backing and laying, before you go on the course, otherwise you are in danger of being left behind before the first coffee break!
A good introduction is the book 'Lay, back and think of winning' by Nigel Paul. Digest that and you'll have no problem keeping up with the course.