Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Don't waste your time

This book was highly recommended to me but turned out to be a major disappointment. The characters were one dimensional, the mystery was less than compelling and the writing was sub-par. The author kept interrupting the flow of the mystery with these supposedly humorous scenes with some bumbling co-consipirators. It wasn't funny, it wasn't mysterious, it was just bad.