This is a good product I just wish it was easier to fill and put back down. Maybe if it had an opening at the top as well as the bottom bowl screwing off I would like it better. Works fine for the kitty.
I use this every time I clean the litter box. It works very well. It really keeps the room smelling fresh. Only one small problem is my cat sometimes sneezes when I use it. It might have too much fragrance. If you have a sensitive cat (allergies) probably not for you.