Instruct: Classify a given Amazon review as either positive or negative.
Query: best thing since sliced bread

The selection of books is awesome. Recently went camping and finished a book, went on the whisper net and had another one in less than a minute. I know longer pack 3 or 4 books when on a trip, just my kindle. The only thing I don't like is that it is so easy to flip a page unexpectedly. However, i got over it because all the benefits out outweigh that.