After dealing with months of potty training, my bedroom carpet was heavily stained (which you could only notice with a black light) and smelled to high heaven. I'd been using the "other" big brand and had it on autoship from Amazon, but no matter what I did, the smell never went away. And then I saw My Pet Peed. Bought a gallon and a bottle, and took the chance. I treated the carpet twice, and the smell is 100% gone and no spots when I use the black light. It's a miracle! I recommend it for any pet lover.