Finally got around to trying crystal litter. I have one kitty and a traditional box. We are about a week into using PetSafe Scoop-Free Premium Crystal Litter, and I have to say I love it!! Let's face it, after a week of the regular clay litter, kitty's room is a mess and the smell would knock a person down. With this litter, there was minimal mess, and no odor, however I still had to scoop since I dont have the automatic box. Not to mention it's safe for the furbabies. I will definitely be transitioning from clay to crystal litter