Fantastic litter. I am a pet sitter & vet tech and have used every type of litter and litter box out there. This stuff is the best. It clumps harder than anything else I've used, doesn't stink like bentonite, is lighter and less terrible for the environment than bentonite, doesn't leave any muddy or hard crust on the litter box, clumps quickly, and is softer than bentonite. It isn't as soft as the World's Best Cat Litter, which is also a wonderful option. World's Best has much softer clumps and I would say has a better scent overall though once the cat uses any litter that doesn't much matter anyway.
The 2 downsides: 1. This stuff ain't cheap. It will last longer than bentonite though bc it doesn't stink nearly as fast. 2. It scatters but then again show me a litter that doesn't...