Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Better than a small box, but with one BIG flaw

The big flaw on this is that it is impossible to use with a litter box liner because the top snaps on with sliding pastic hinges that hook into the bottom portion. (And you have to use the hinges because the whole point of this box is to roll it upside down.) Without a litter liner, you are forced to hand clean any mess left inside once you dump the contents for a full clean (not so easy either).I suppose this box would be ok if you had a back yard and could simply hose it down, but if you live in a big city like I do, four stories up, this just adds a lot more to your work.I recommend Clever Cat top entry litter box instead. It's my other litter box, keeps the litter off the floor, uses a litter liner, and is cheaper.