Super quiet and not as big
This litterbox is great it's the same foot print as a litter robot but it looks like it doesn't take up as much space as the LR3 that im replacing. It is super quiet, if you're in the room with it when it's running you still might not hear it. You do have to make sure the bag in the bin isn't covering the door at all or it won't open correctly. My chonkalicious kitty was afraid of the LR3 because he felt trapped, he's used this twice, my ancient kitty (19 yo) with arthritis wasn't using the LR because it sits up so high it hurt him to climb the stairs to to get into it. And he'd track litter EVERYWHERE, this sits low to the ground like a regular litterbox, and somehow he's not tracking litter all over. I've only had it less than a week but so far no complaints.