I had had read quite a few reviews elsewhere saying how bad this product. I did this AFTER i had bought my first container of and was quite skeptical of using it but since I had it I would go ahead and use it . To my surprise, all the things mentioned in the bad reviews didn't occur with me. There was no bad odor from it, it clumped well and generally did what litter is designed to do. I have multiple cats with multiple boxes. None of the cats have rejected it so far and it has been well over a month since I changed over from another major name brand. It is far less expensive and seems to last longer. ( I have multiple sifting style pans)