Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Run, run far away!

Another guy trying to make a buck by having a blog. Actually, another guy trying to take your money, because he has a blog. He probably wrote the 5 star reviews for the book. This book is not researched based, his claims are not research based. Basically seems like he went on a diet and is trying to package and sell his experience. Sound more like Jimmy Moore use to fill his time with eating, and now he fills his time with blogging and trying to be relevant. I guess it's better then killing himself with food. I'm not donating to his cause though. He should get a real job.