My daughter likes her auto litter but I’ve heard others who didn’t.
The best litter set up I’ve ever had on our many (nearly 2 dozen) cat sits was a pellet style.
SO easy - ZERO smell. It was called Purina Tidy Cats Breeze in a system with a “peepee” tray with pads below it that you pulled out. The unit is called Tidy Cats Breeze Litter System. The best.