I don't get all the negative comments about the litter. It clumps just fine—as long as you don't shake the scoop like crazy, the clump stays about 90% intact. It does create a bit of dust when cleaning, but not when the cats dig. For me, it's the best value for money.
Not the best for electric toilets – it gets smeary when wet and then sticks to the sides in an unpleasant way. But it does clump well and is low in dust and fine.
Clumping litter that produces a certain amount of dust, but I suppose that's unfortunately unavoidable... It's really a shame not to be able to subscribe to Zooplus Zen, because the choice of courier is random and Chronopost never does its job when it comes to delivery... I always choose GLS, as you can really rely on them.