Not all that good
I have 5 cats using the litter trays. I bought this as reviews indicated that there is no mess with this and it doesn't stick to paws. It does clump , but it is quite messy. Not where it's been scooped out by the cats, but where it shakes off their fur and it does cling to paws. When first putting it down it got onto my hands as a very fine and soft powder and I had to wash it off, it didn't fall off by rubbing. That means that the cats, who lick themselves clean, are swallowing small amounts.