I purchased this for my family cat first and now I just purchased another for my two kitties that I adopted. They are really intrigued by the catgenie and I love it because I don't have to feel bad about not cleaning their litter everyday. This has been a well thought out purchase and although it looks costly, you really are saving a lot of money on litter and it is better for the environment. I don't recommend buying the catgenie without the sidewalls because the little pebbles will get everywhere. You want to save money by keeping them in the bowl. :) Overall, great product that I cannot live without.