The book is written in an insanely repetitive manner, the author could have excluded 1/3 of the content and delivered the same message. this is also allegedly a book about breaking habits with phycological facts, which was great at first, until the author his religion down your throat towards the end of the book. other than that, there's a few good bits of info but i wouldn't buy the book.
Todo bien hasta que se agregaron los matices religiosos. Sobran.