I ordered this after the Two crazy cat ladies recommended it. 10/10 product. No smell at all. I use Dr. Bayers one source litter and it was smelly... until I sprinkled this product on top. You can't even tell I have 2 cats now....
I have 2 cats and the litterbox is always quick to stink, this helps so much. I can barely ever smell any scent, and that's only after they just used the litter box.
Give it a try, it might work for you. I was looking to reduce the typical wafting of odor from my cats box, fresh or not, and control it especially as the weather gets warmer and more humid. I had to put a lot into even one box (think 1/4 cup at least) to make any sort of difference, and then it just becomes cost prohibitive for use in 2 cat boxes. But, I would still recommend to try as each cat, box, and home is different!
We decided to give this a try, and it works very well.