I have to definitely rate this 5 stars. It's the second time I buy this litter box, but don't get me wrong! It's not because it broke but because I moved and got a cat of my own. The first time I bought it, it was at my parents house because they were complaining about the odor and how everything stunk because of the cats and THIS litter box was the cure to everything. No more bad aroma, no more litter everywhere, everything is neat and easy to clean, WE LOVED IT. Mind you, people complain that the size is not big enough for their cats but one of my parent's cats is 17 lbs and he fit perfectly. Keep in mind that your cat only needs to turn around and go back out, so don't think this will be a big, playground-like sandbox, it's A LITTER BOX and it works great.Now that I got a cat of my own, they told me not to give him an enclosed one because he had an accident. Guess what? No accidents on this one, he's an 11.5 lbs cat and he fits perfect too, he uses it just fine and there aren't any unfortunate messes. About the filter on top, you don't need to change it that often and it doesn't let any odors come out, so don't worry about anything smelling bad.Definitely worth buying. ALSO! The shipping is extremely fast, I ordered it on Thursday of last week, and it arrived on Friday the next day.
Rating: [5 of 5 Stars!]