Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great idea, but doesn't work

We purchased the litterbox at a local petstore and ordered extra liners on Amazon. Seller is great, however the product itself the cat HATES. He rips the plastic apart and it shifts all over the place, leaving litter everywhere inside and outside the box. We've opted for the old litter in the box, dump, and wash method. It's easier, in our opinion. Now little bits of plastic aren't all over the place.