I really like this litter pan style. I have two cats and one pounces the other when trying to use a standard litter box, after getting this my cats can both use the girl's room in peace! it was also plenty big enough for the bigger cat, whos around 15 lbs. The last thing is it saves on litter, as I don't have to use as much, and it is super easy to clean and keeps the area around the litter box from suffering the common cat sand kicking issue.