Tried all the rest, this is the best and economical too.
I've used World's Best - plain, x strength & lavender 8 years, with numerous old rescue cats; all were fine. Flushing - clean, easy, safe; plumber said he'd never seen a cleaner soil stack. I scoop trays min 2x daily, liquids clump fast no whiff, easy to scoop. Slight dust scatter, nothing icky; less than any other I've tried. I use it deep in high sided trays and a bag lasts weeks. I deep clean trays weekly, but can always replace some old litter after cleaning trays, though v picky. Try it!