I was using a standard old litter box my whole life with all my cats. Recently, my tuxedo cat began peeing outside of her litter box. The problem was due to the fact that I was getting called into work late for weeks, and simply was exhausted from 12 hr workdays, I forgot to clean out her litter. I began researching self cleaning litters that reduced odor and came across this product. I was hesitant to try something new, but it fits the best for my lifestyle! Changing the tray once a month is perfect for my ever-changing schedule. I’ve now had this product for almost a week and there are no odors that come out of the litter box. Occasionally, I’ll stick my head in the box to sniff and see if Petsafe’s “fresh scent litter” stays smelling fresh. To my surprise, it still smells fresh although my cat has already used it for days. I highly recommend this product to cat owners. It’s a game changer!