Started with the cheapo kind-- I think it was scoopaway, it worked ok but the clumps crumbled too quickly.
I've used Fresh Step for awhile, got it for almost free with a special coupon offer.
The smaller packages seemed ok, then I bought a big tub of it.. very strong perfume scent. My cat smelled like her kitty litter, reminded me of too strong softener laundry smell- ewww!
I have to sweep around the box daily, even with a carpet square under the box to prevent tracking.
Tried non clumping, Poly looks at me oddly "What are you trying to pull now lady?" ... She will use it but sniffs at the box before using, and delicately steps out.
Going to try Tidy Cats multi cat on the next litter change. (Found another coupon deal LOL)
Poly insists that litter must be very DEEP in her box, she will kick out her poops if she feels she can't cover them enough. Shudder.. poop on the floor brings back the days of my youngest DS potty training-- ewww!