I have 2 cats. I have a larger litter box, so it took a lot of this to fill my box (over a full small bag). 2 bags looks like it will only last 3 weeks - at this price, this cost can add up. And I found that it didn't bust the odors as well as I would like/expect - it's good in the sense that I could only smell it when I was scooping, but still a scent of the solid waste. Dust level not bad at first - but after 2 weeks of use, last night I had a big dust cloud when scooping. This morning was better, but as someone who scoops twice a day, I prefer not to smell anything and not to see any dust.