Exceeded my expectations!
We foster kittens in our finished basement. After our last litter had left and I had cleaned top-to-bottom, we still had a lingering smell of, well, kittens (poop, food, fur, puke, litter...), so I thought I'd try this. I plugged this bad boy in and then we boarded a plane and were out of the country for a week. When we returned - WOW!!! Not only is the kitten smell GONE, but the usual musty-basement smell is gone as well! I am in SHOCK!!!! The basement smells better than ever!!!!! It's hard to explain, but it just smells so clean and pure.  Like being at the top of a mountain, I suppose.  I'm buying half a dozen more of these to put around the rest of the house.<br />I really didn't expect this little thing to do that great of a job, but I am seriously impressed.
Rating: 5 stars