Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Solid.

This book certainly didn't change my life, but I really enjoyed it. It was very refreshing to read a "post apocalyptic" type book that was realistic but still exciting.I won't spoil anything, but my only major gripe was redeemed at the end. And it's compelling (and short) enough that it probably won't take you long to get there.