Instruct: Classify Amazon reviews into positive or negative sentiment
Query: very disappointed

this book was absolutely awful. i have read several self-help books and this is the first time i've felt so strongly about it that i felt compelled to write a review. this author is totally full of himself. i was very frustrated when reading this book for two reasons. first, it was very vague. he kept telling you what he was going to tell you next, then never really got to the point. second, i felt as though he was talking down to me, which was probably because of his big ego. another thing i found particularly disturbing was his reference to using illegal drugs to improve your sex life.