Yeah, they have done a little work for me, not a regear though. I have heard nothing but good things, and I work with a bunch of gear heads. Very knowledgeable staff and its always full of customers, most of them repeaters.
I'm hopefully moving to bolivar in September. I have had all of my big mods dine in Leesburg at dulles. They are a dealer, but their shop mechs are really good. I always ask for the mech to do the work by name (depending on what it is), and have never been disappointed. Both of the mechs I use there are jeep owners and really seem to know the platform really well.
If you only have a Jeep, every problem appears as a rock. I like rocks.