Good book, but a little on the repetitive side. It didn't do it for me, but I think that's because a lot of the points he makes are things I already thought of constantly.
The repetition seemed like some form of deliberate hypnosis. I would read the repetitive parts and my mind would start to criticize how it could be so poorly written, and by the end of the book I had quit smoking after over 10 years and not even thinking I would ever even want to quit when I started the book. (and still quit after 10 more years)