I had been using Arm & Hammer for many years. I tried other brands in between but was never satisfied until I recently found World's Best. Reluctant to invest in yet another brand, the name drew me in. (How can they call it World's Best if it isn't really good?) The result - no more dust (which I hated breathing in), less tracking, lasts longer, no bulky box to struggle with and cleans up better (everything clumps and doesn't stick). Best of all, I don't have to worry about what my cat is licking off her paws because it is natural. The other litters can't hold a candle to this...read full review »