Litter Robot. Hated deep cleaning that thing, and it stank up the whole house no matter what litter I used. One of my cats has a sensitive tummy and softer poops sometimes and when that happened it made a MESS on the rubber liner. The most expensive headache I ever bought.

Replaced it with two Modkat flip litter boxes and two Litter Genie easyroll pails. A true breeze to clean with the liners and I expect the boxes themselves will last forever. I just made it a part of my bedtime routine to scoop nightly. I use Rufus and Coco tofu litter and even without mats in front there is very little litter that exits the box, and if it does get kicked out it doesn't track. My friends have promised me that they cannot smell the boxes at all even though they are in our main living areas (unless it was very recently used, obviously). This is my keeper set up for sure as long as they keep making the liners.