I tried this crystal litter for the first time about two weeks ago. I am really impressed with how well it masks the smell. I have four cats and we’ve literally only changed the litter twice in two weeks . When the litter turns yellow you know it’s time to change it you won’t know by smell . This isn’t any regular litter like I was using that’s for sure it’s so much better and much easier to clean . Another great thing is I don’t have lots of litter all over my floors when the cats are done using the box . Life is much easier when it comes to cleaning up after my cats now.