I know a few people who've read it and been able to stop.
I read it, and it didn't help me stop, it helped me cut down, but at the time i wasn't really "ready" to give up!!
Although last night using the guidelines set in the book i had my last cig!
And dispite being sat in the smoking section i'm not actually craving a ciggy!! *proud face*
I would recommend the book, its definately worth a try if you really want to give up!!
xox