Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Delivers the goods

Lyle's title says it all. I lost the weight I wanted, and gained new insight into weight maintenance (having been an Atkins guys for several years now). The caveats I would have are first that the price is high, which I presume reflects small volumes or self-publishing. It was worth every penny for me, though. Second, I suspect you will get best results with the caffeine/ephedrine supplementation suggested.