Great! Works like a sieve.
This has bigger holes than the other litter scoops I have, so is perfect for clumping litter. I use it to basically sieve the litter, scoopful by scoopful. Only the lumps stay in the scoop to be popped into the litter bag. Perfect! Highly recommended.
I use World's Best litter, and with my other scoop, the holes are small enough that I wasted clean litter when picking out the lumps.