Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This book delivers the goods!

I cannot say enough (good) about this book! Not only does it "deliver the goods" in terms of adrenaline and suspense, but it has poetic language and uncommonly lovable characters. There's plenty of scientific, thought-provoking discussion, too. The book makes no bones about the fact that humanity is really straining its leash in terms of invading the environment. Also: I LOVE Dr. Peter Maryk! He does for the needle what Jimi Hendrix did for the guitar.