Instruct: Classify Amazon reviews into positive or negative sentiment
Query: It Works!

I bought a Pre-owned car from the stealership that must have belonged to a smoker, I bought this unit and after about 400 miles of driving, people who get in my car now ask and tell me "is this a new car, I love the new car smell." So obviously, this unit is doing it's job and has helped with eliminating the smoke smell.Pros: Power indicator light, "plug and play," works, cheap.Cons: None that I could think of.I would definitely recommend this unit friends.