Unsatisfied.
The size of the litter box is fine and nothing leaks out the sides if the edges get splashed. However, to clean the litter box you have to take the whole lid off. The corners of the carbon filter are left exposed inside the box, so every time the cats use it, they make sure to pull at the filter and drag it into the litter (I had to give up on it). The side clipping system isn’t secure—if there’s a bit of weight in the litter box and you lift it by the lid, it’ll come apart and fall.