I didn't do any price comparison so I can't comment on prices, but I had a very enjoyable experience with Eurowise.
I have an Audi TT and it is my baby. I had taken it to various "import" shops in charlotte over the years. One would never call me unless it was to sell me more stuff. Eurowise was much different. They called me when they figured out what was wrong to get authorization, they called me as soon as my car was ready so I didn't make any trips out there for no reason, they also called to know if I was picking it up that night or if they should pull it it.
They fixed what I took it in for and even identified a problem I didn't mention after another mechanic told me I was just making it up. I endured that issues for months and Eurowise fixed it right up.
Plus they are right off the light rail line so I don't have to hound people to take me to pick up my car.
Sure, there are a lot of "tuners" who hang out there, but for Audi service I left with a very professional experience.