Although I didn't know how it works at first, it's definitely worth the money. If you don't have sifting, it's a one-way street.

I am not satisfied.
I got it to try instead of pellets, as I have a long-haired cat and I don't want the litter to stick to him.
Indeed, it doesn't stick.
But it doesn't absorb any odors at all and the urine looks very bad.
Finally, it is expensive for its size.
A thousand times the pellets!

I leave it outdoors, so I can't comment on smells. However, it is absorbent and lasts a long time. Reasonable price.

So far, one of the worst ones I have tried. The same quantity (15lt) lasted only half the time compared to cheaper ones. Bad purchase!