It is one of the best crystal litters I have tried in relation to its price. I have been using it for years, and whenever I switched to other crystal litters, I returned to this one, either because the others are good but expensive or because they are terrible.
I should mention here that I would never go back to classic sand. Also, I don't use it as recommended with the crystal litters. If I did that with 3 cats and the corresponding 3 litter boxes I have, the house would smell within a week and it would barely last 2 weeks. I put a little sand in each box just enough to cover the bottom with a height of 1 to 2 centimeters, and I clean daily not only the poop but also the sand underneath that is yellow from urine, and for every dirty bit I remove, I add clean. This way it lasts about 3 weeks without ever smelling bad.

I used it for years because it was recommended to me by a friend.
As long as I preferred it, I was satisfied.
The only negative aspect was that it collected a lot of dust compared to another brand I switched to.

For me, it is the best and the one that lasts longer. I have tried all types of litter, none of them lasts like this one. With 2 cats now and a 16kg package, it lasts about 40 days. With all the others, I had to get new ones after 20 days.

Its negatives are that because you only remove the waste and not the urine, after about 2 weeks it starts to become intensely yellow and overall it doesn't provide "healthiness". In the beginning and for several days, it doesn't smell like anything, only after about 15 days a slight odor starts depending on the cat's movements. When it starts to smell strongly, it means it needs to be changed.

With the other litters, yes, the litter box remains "clean" because you remove the urine as well, but because of this, you constantly have to refill and the litter runs out very quickly and they are all very expensive. With this one, I only need 27 euros for 40 days, while with the others it's almost 40-45 for the same period.

As others have mentioned, it sticks to the feet and has a lot of dust. Also, the urine pads are not distinguishable to clean them, and the whole quantity goes to waste from the smell.

Extremely bad.
Too much dust for crystal sand, it constantly sticks to the paws and even after cleaning it constantly, it smelled bad throughout the week.

It is terrible in terms of dust, it smells throughout the house, and you can't stand it at all, even my cat keeps sneezing constantly

I had it for 2 months recommended by a pet shop as the best. It's not bad, but as soon as I tried to switch to Ever Clean... it's a different category! So only 3 stars just because there is a product with double the price, but so much better...