Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Prone to Lid Loss

This product works pretty well until the lid pops off and you lose both the lid and the bags inside. This has happened to us many times. Usually we are able to retrace our steps and find the lid, but a couple of times we couldn't. Hence, we have two dispensers with missing lids. The product is cheap enough, but I wish the company would come up with a more secure mechanism.