This is seriously one of the best purchases I've ever made. I had litter dust everywhere, including in the cracks of my hardwood floors throughout the entire house. And my cats would track the dust all over the couch, the bed, you name it. None of that anymore. The house is dust free! It's worth it just for that, but to never have to buy, haul, scoop, or dump litter again is fantastic. I have one cat that used to be semi-feral, and I thought she'd never use it. She took to it immediately and now watches it go like it's tv. The other one waited 3 days, which was kind of concerning, but then he used it and has never minded it since. This company better never go out of business, because I'm never doing the litter box thing ever again.