It works awesome. I've tried everything else. I have an Airbnb and was very concerned about the pee odor on the stairs to our private living quarters, tho nobody mentioned it. Well, I noticed it! I'm glad I ordered two bottles because it does take at least two applications. And the area I had to cover was a staircase. Not sure why they insisted on peeing on the stairs. Go figure! Also, read the instructions people! Don't do what I did and spray generously and allow your dog to walk on it until it dries. Your dog will not like that at all, apparently it causes ouchie feet. This was solved by using warm water with a little soap and baking soda. But I learned my lesson! And yes, it does state RIGHT ON THE BOTTLE that it's safe for pets once it dries. And it is, no problems after it dried and my carpet looks beautiful. Once my puppy is trained I'll keep purchasing it for accidents. Thank you so much for inventing this product!