I think I finally found the Audi shop I was looking for in Seattle. Although a little far up the beaten path, they know the car well and don't charge an arm and a leg. A lot of their work is tuning and aftermarket upgrades, so they understand the inner workings of the car very well.
I recently had my clutch pads replaced. The new clutch drives really well, it cost me substantially less than the dealership's quoted price (40%), and they identified a few other potential problems that were missed by other shops (I was able to determine that they are legitimate problems though). All in all, well worth the drive.
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