Poker Tracker User's Guide

Anybody familair with this? I just registered my copy of pokertracker and was wondering if anyone had experience with this or think it is worth it.

http://www.pokertrackerguide.com/pok...ide_about.html

I have a very hard time believing that would be worth it. The Poker Tracker people monitor their forums very well and are great about answering questions that people have. I think you'd learn a lot more for free just browsing the forum and asking questions than you will learn from that guide. After reading the sample chapter from the guide, I am going to have to say it is almost definately not worth $20.