I recently bought a litter robot and needed a fine grained litter to work with the system, that was also plant based/biodegradable. I've tried other popular biodegradable litters and myself and my cat just can't get on with them. This litter is perfect as it clumps instantly and is great at locking in odour. My cat loves it - it's so soft on her paws and she really likes sandy type litter. Negatives - since my cat is black she can end up looking a little dusty due to the fine grain.