I heard about it too, and wondered what it was like...
I think there's a thread on this on the forums, have you done a search yet?
Also if you google it you can find some info and reviews..
Whats "the linden method" then? - OCD Forums seems it's like another method of ERP?
I think it might be useful but possibly overpriced? And it might be somewhat useful for some people, not so much for others? (Like all books, CDs or methods?)