i own one cat, and he is the first pet of my adult life (which means he's the first pet that i'm solely responsible for).  i should start off by saying that mine is not a picky kitty.  he's never gone potty anywhere other than his litter box.  this thing is so big!  i clean the litter box about once a week.  however, i once went two weeks without cleaning it and it really wasn't a big deal.  the lid is big, and you need room to set it down while you scoop.  they make liners specifically for the booda dome, and of course they are a bit more expensive.  however, they are huge and not as flimsy...