Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Although this diet really works, the book is poorly written.

I am using Adelle's diet and it is working. However, it is really difficult to get past her cheesey, disorganized, scatter-brained approach to writing. Rather than putting the core information in a accessible place in the book, she scatters it about, and fills the middle with pseudo-inspiring mantras (she must say 100 times that extras should be something you ABSOLUTELY ADORE until I can practically envision her doing a high kick in her cheerleading outfit). My advice: give it a quick read and outline the good stuff in a page. One other comment: this book seems to assume that the reader is overweight in part due to a complete lack of exercise. If you, like me, exercise at least 5 times a week, you may need to eat a little more for breakfast than her diet recommends.