Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I was not impressed.

I was not at all impressed with this novel. I have read far better mysteries; this one seemed trite and contrived. Granted, the parts relating to book collecting were interesting, but the actual mystery left me completely uninterested. I didn't even really feel compelled to finish the book. The dialogue was stale, and the characters were poorly developed and unbelievable. In my opinion, if you're going to read a mystery, you should try someone else.