Instruct: Classify an Amazon review as either positive or negative.
Query: Piece of crap.

My husband and I bought this when we were about 6 weeks along, knowing fully well that it wouldn't work until the third trimester (but being our first child, we figured we'd give it a shot anyway... we were excited, you know how it is).I'm now 37 weeks and never have I heard anything from it that wasn't gas or my hand moving. It's a great idea in concept, but very poor execution. Don't waste your money.