I purchased a 2004 A6 wagon from Alex at Alliance, and the purchase process and price were great. No pressure at all, very relaxed atmosphere. However, the service after the sale is where Alex and his team have shown me what customer service is all about. I will spare the gory details, but suffice it to say that I've had more than my share of problems with the car in the past 12 months. Some of it is small stuff that I've taken care of, but the most recent issue is a difficult-to-diagnose oil leak. Not only did Alex agree to take the car in to take a look at it, but he found the problem and has agreed to fix it for the cost of parts only. Keep in mind - this is ONE YEAR later. I think it's safe to say that any other dealer, big or small, would have told me to take a hike under the same circumstances.
Alex has a great eye for cars, especially VW and Audi, has a great selection and fair prices. But more importantly, he goes way above and beyond to stand behind his cars and take care of his customers. I recommend Alliance 100%.