Coming from a similar (catmania) I have a lot of positive things to say about this litter.
First, it is 12 liters, which is 10 kilograms, while others are about 10 liters, approximately 8 kilograms.
Second, it is coarser compared to the other one I had and it clumps very well, especially in the first few days.
Third, with very thorough daily cleaning, I can say that it lasts me at least two weeks (half a bag, 5 kilograms)!!! Of course, this also depends on how many times your cat goes!
In general, for me, it is a value for money litter both in terms of quantity and clumping. Towards the last days, it loses its scent, of course, and it creates a little more dust when the cat comes out, always based on my cat's usage!

I have been using this sand for about a year and I am very satisfied. I have tried both charcoal and scented ones. Lately, scented sands have made the grains very fine, resulting in more dust and more sand spreading around the house when the cat comes out of the litter box. Apart from that, it is a good sand and I manage to keep it clean by cleaning it once every 2 days. However, I am thinking of trying another one that won't be so fine.