I have had a number of automatic cat boxes over the years. The one I currently have is fantastic, but still messy because of adding litter and throwing away the used litter. The Cat Genie is absolutely amazing and my cats love it. I will never go back to regular cat litter boxes ever again. My older cat could have cared less, but the kittens were extremely interested in the Cat Genie. They watched with fascination as it worked. The fact of not having that dusty, dirty cat litter is just amazing. No more sneezing and itchy eyes from the dust. Couldn't be more impressed or amazed by this product.