That's the general idea to change the color of a car in a day without a lot of fuss. That was the idea, but in my honest opinion I think that plasti deep is not for a car like an S3, or any other expensive car. R34nel can you put some more detailed pictures of the door knobs, edges of the doors etc? I'm from Croatia, and 2 months ago a guy that has an RS6 decided to plasti dip his car. The end result was a total disappointment, and I'll give you a link to the gallery of photos so that you can see how they wrecked the car.. The best people in Croatia (with years of experience and background)were involved in this, they did the work in perfect condition (chamber), but the end result was horrible, here's the link to the gallery..
https://www.facebook.com/media/set/?set=a.468288349932647.1073741838.117238228370996&type=3
They said the problem was in the stuff, it's just not good enough. It could be good for cheap cars and owners who don't care much. But for more expensive cars like an S3 or RS6 it's literally light years away from a quality paint it should be..and like they say it is.
The truth is that the people that have their cars dipped is those who have nice and expensive cars.
As for a good results depends who is doing it for you and how it is mixed and where they bought plastidippin.