If you have multiple cats you absolutely have to have a Cat Genie! I can't imagine ever having to scoop up and throw away regular cat litter again. This thing has made my life so much easier. All I do is flush the toilet once a day and that's it, it's clean! The slightly higher cost of this unit plus supplies is easily offset by the fact that you no longer have to clean a litter box, buy and haul litter, or throw away heavy trash bags full of dirty litter. It never smells bad in my bathroom anymore and my cats took to it in no time! I will be a customer for life!