Review (3/5): they hate it
i really really thought that my cats would go RIGHT for these, but they have not used them one single time. they are always rubbing their faces against anything and everything, so i thought hey let me make that a more pleasant experience & get something meant for that...rather than having them go crazy on a cardboard box, or my toenails. but nah, it's almost as if they're afraid of it. if your cat has used these self cleaning brushes before, then they will probably love this. mine are just so picky.