We had driven down from Seattle in our 1990 VW Vanagon to visit family when our air conditioning failed. Figuring that a Phoenix auto shop would know about these things (in Seattle they think "air conditioning" means rolling your windows down) we checked Yelp for a VW repair shop in Phoenix.
We read the reviews of Affordable German Auto, decided to take a chance -- an excellent decision!! We telephoned, explaining that we were just traveling through Phoenix and the heat was getting to us. Bill made a special effort to get us in the next day.
Bill, the owner and a Vanagon aficionado himself, drained and recharged our a/c system. (The old system had to be completely evacuated, purged, and flushed; the compressor oil had to be flushed and changed too; etc.) Bill also explained to us that we should have our compressor eventually replaced. We weren't staying in Arizona long enough to have them do the work, but if we lived in Arizona again we would be regulars for sure!