I am on day #2!!! They cats seem to be peeing in this box. I didn't do any 1/2 and 1/2 just straight poultry layer chicken feed. Its a littler more coarse than say tidy cat clumping litter so the cats seem to get more out the box when digging. But so far so good!!! No order, the urine does clump a little bit so not too bad to scoup!! I've seen two of the cats in that boxfor sure. Ox hasn't been feeling so good and I don't think he uses the boxes downstairs anyhow. I have to see Grizzly use it yet before my stamp of approval goes on it. The bag was $8.16 for 50#.