This litter box is the best thing I have even had! It cleans itself after the cat uses it, and it does so quietly so it doesn't scare the cat. The little fully absorbs the urine and take the moisture from the feces and then stores it away until it's time to toss the box and add a new one. So, there is no smell, i don't have to scoop it all the time and when its time i toss the box and add a new one that I can get mailed right to my door. Where has this think been my whole cat owning life!!