Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Self cleaning litter box

Something of note that I hadn't thought of because I always use liners is would it come with them or would I need to get them. As it turns out if you keep your box deep so the moisture doesn't hit the bottom and empty at least every other day you won't have to clean it for two weeks or more as long as you continue to add more litter. Otherwise this thing is the BOMB for the price. Came fast. Great seller. Will purchase from them again if they have what I am after. The item was even double boxed to prevent the carriers from mashing or damaging the item. Kudos all the way!