Definitely not Cat's best!!
Same as other reviews, the clumps don't clump particularly well at all, some of the much cheaper clay ones knock spots off this fairy pricey one.
It also tracks everywhere, my poor kitten was trying to help by banging his feet on his tray for ages, but it still got walked through the entire house!
I'm glad I just tried the trial bag as whilst it works out more expensive per litre, it would have been a lot of money wasted on a bigger bag.