I'm also interested...
I've been to G&C Auto in Chantilly a few times. They've done good work, but they really really really push useless service packages and one time when I was getting new tires put on I came home to find that my owner's manual and wheel lock was missing. I understand the wheel lock, honest mistake, but why even take out my owners booklet which had my insurance card, registration, etc. in it? Who knows...they brought it back to me as soon as I called but I still feel like every time I go there is a little thing that irks me.