Well I dont know who that specific guy is, but those things all sound positive to me. Why stop after 90 days?

This is the same techniques as found in the Law of Attraction and what all the teachers in the Secret movie were talking about. Bob Proctor - one of the teachers expounded the principles in one of his latest reports. The free report is all about the acceleration of the Law of Attraction. If you want to see results quickly you should pick up a copy of this free report:

http://www.creatingavisionboard.com/bobreport.pdf

Yes, they do bring results especially if you follow a good guideline like the ones described on Quora (http://www.quora.com/What-are-some-mind-power-techniques-that-work) and other websites.