Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worse then a littermaid, buy a litter robot!

I have 2 cats and this is by far the worse smelling cat box I have ever had. It also made one of my cats start pissing on the carpet. This is very expensive in the long run if you have more then 1 cat. Search for a litter robot instead. It is by far the best cat box I have ever owned and will save you a ton of money in the long run.