Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Really works!!!

We got 5 of these and spaced them around our property, and voila - within a week, our property has been mole free ever since. They are truly amazing - a bit noisy but well worth the noise to rid our property of these nasty critters. We ran over the top of one of the mole chasers with the lawn mower and water got into it so it isn't working, so we are buying 3 more just to be on the safe side. We love these contraptions!! I don't know why they don't work for some folks because they certainly do work for us.