Not good for course litter
I use catsan cat litter which this scoop doesn't handle well. The grill is too fine to allow the litter to pass through so when you try to scoop poo with it you get just as much litter. It isn't possible to shake the scoop to get the clean litter to pass through so you are left with a choice between throwing out extra litter or trying to only scoop the poo.
It may work well with fine litter but not with course litter.