Instruct: Classify Amazon reviews into positive or negative sentiment
Query: 3M Caulk Remover

This product works exactly as described. If I need to remove caulk in the future, I'm buying this product. It was easy to apply and the caulk came off with ease. It says to leave on for up to 7 hours for stubborn caulk, but I didn't have to wait that long. Great product!