We switched to CatGenie over 4 years ago, and there is no going back! Litter is always clean and fresh for my cat. I would strongly recommend the unscented solution because the scented one smells really bad when the Genie is drying the granules and then the smell lingers for an hour. It smells like baby powder sort of, but it is not the kind of smell you'd have chosen for your house. Unscented solution doesn't smell, so it's neutral.