This stuff is fantastic. And I do mean fantastic. I have two cats, and we had to replace the carpet in our last house because of cat pee - once they pee somewhere once, they can smell it no matter how much you clean it and will go there again - it's terrible, and nothing worked! Well, one of the cats got sick in our new house and peed on the carpet, twice, and I thought HERE WE GO AGAIN. But I had some of this stuff on hand, thank God. I sprayed it on, and neither of the cats have showed a single bit of interest in those spots again, and it's been months! I can't even find the spots with a black light. This stuff is AMAZING. Gets out cat pee, cat puke, and even got the milk smell out of my car after a toddler spilled a cup in there.

A few words of caution - this only works on biological substances, i.e. urine, vomit, poop, and apparently milk (which is biological, so...). Also, do not get it on your skin. It burns. But since you don't have to do any scrubbing, it's seriously spray and walk away, this shouldn't be much of an issue.