My cat loves the World's Best Cat Litter and other corn based litters. I tried the Swheat Scoop with her a while back and I ended up cleaning up cat pee and poop from everywhere BUT the litterbox. We also tried the pine litters and she would kick all of it out of her box before she'd go inside and do her business, leaving me to sweep up pine stuff from all over the carpet. So I guess you could say she gave all the other stuff a big thumbs down. She also has OCD and doesn't handle change well, so once we found the corn litters and she accepted them, I started buying them in bulk.