Instruct: Classify the given review as either positive or negative.
Query: finding cat pee in the middle of the night

the light worked great for finding all the places that my cat had sprayed. it works so well that it picks up other spots that have been cleaned previously so you have to figure out which is which but after that it works quite well. it's a product that you really don't want to use but it really showed all the places that my cat had marked in the house.