My car was stolen a couple weeks ago, and when the cops recovered it, it was filthy inside and out and reeked of weed and tacky cologne. The inside was covered with black stains from fingerprint powder that the cops used and dried gorilla glue that the thieves used to try to glue the side mirror on after they apparently knocked it off? Also I'd never cleaned the interior upholstery since I got the car (used) 12 years ago....don't judge my life. =P
Fortunately my car insurance covered cleaning so once we got it back I brought it in for a detail, upholstery cleaning, and exterior wash. Now not only does it look better than it did before it was stolen, it literally looks new. I don't think it would be out of place in a show room (20 years ago anyway)! The interior and exterior are both spotless. Oppressively thick weed smell is 100% gone. AMAZING. I recommend them without reservation.