Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Interesting but No One's Home!

Don't buy this unless you are just curious. This was a fascinating read, discovered soon after my sister suffered a massive stroke. It offered about the only real hope apart from a miracle that I could uncover in my research on her behalf. I promised her that when she was stable enough to travel, I would take her to the 3-week clinic.However, when I tried to contact Dr. Hammesfahr and Clinic, it was impossible. Apparently the clinic is shut down and the Dr. not taking any calls nor responding to emails. I am curious--it sounded reasonable. Research on Quackwatch.com reveals that his claims about a Nobel prize are explained away, and the medical establishment considers his application of the TCD test not accepted protocol. So it had raised my hopes (and my sister's too) in a huge way because of reported anecdotal success rate-- only to discover the book is worthless, however interesting.