Me too. I've had a large and an x-large for about 6 years now. They're sturdy, reliable, and cut down on mess significantly. Thoughtfully designed too.
Accessibility changes for Willow. She's eight and a half now and her eyesight may be going. I put a litterbox and food/water on the floor so she can always access it, and better stairs to her cage.
They can be somewhat messy, I prefer keeping their litter boxes inside a small cage with solid sides to prevent bedding from spilling out. I don't usually smell their litter box as long as I keep it clean, but you can get odor-reducing animal-safe sprays that work quite well if they are...