Better that Oko Cat's Best
Like the reviewer above, I've always used oko cat's best previously as it clumps well. However, within a week or so, the remaining litter always turned to dust, so inevitably, you would have to throw it all out. With this Extreme Classic, I don't have that problem anymore! And it does clump beautifully. One of my three cats jumped straight in after watching me change the litter tray with interest. Two sniffs and he was happily using the new litter. He seemed to love the way it felt on his paws too, judging by the amount of treading the was doing.
One other major plus point is this one doesn't track at all like my last brand. Get it, you won't be disappointed!