It was a very interesting read, for one. I had read it a while ago and their presentation concept really appealed me. There had been a lot of discussion about this on other IM forums, and many say that the system worked for them. I won't comment whether its a treasure or not. But, the writeup is great
I have heard a lot of good things but haven't yet taken the plunge myself. If you do check out ppcbully.com it would be great to hear about your experience. Good Luck.