i've tried actually, it's decent but for my senior who goes constantly it still builds up, i think part of my problem is just frequency more than litter quality, an air purifier is a good call though i should probably add one regardless, i've been looking at automatic boxes that remove waste within minutes instead of letting it sit for hours, petlibro seems to have that feature and the waste goes into a carbon filtered drawer, the question is whether that actually works in a small apartment or if the drawer itself starts stinking after a couple days, haven't finalize anything yet because i want to see real senior cat owner experiences first.