The Luuup does not work as advertised. We filled ours with 5 inches of Tidy Cats clumping cat litter and followed our regular routine of cleaning out the litter box three times a day.
Here are the problems we had: (1) Wet litter clogs the grates and gets progressively worse throughout the day, making it impossible to sift. (2) The box does not have a non-stick surface, so clumps of litter stick to the sides. (3) The sides of the box are not tall enough to keep the cat from kicking litter out of the box all over the floor.
The bottom line is, our high-sided $10 box works way better than the Luuup. We threw the entire Luuup in the trash where it belongs. We will never "back" a start-up like this again. I'm interested in participating in a class action suit to prevent other people from getting ripped off by Luuup.
Bottom Line: No, I would not recommend this to a friend
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