I wouldn't expect the service situation to get any better with the new model Y coming out. Unfortunately, this a symptom of their rapid growth.
As far as the Audi, you gain service at a loss of vehicle range, technology, and long distance charging. If you are thinking of buying and not leasing, then bargain hard as I've seen them selling on CarGurus for $10,000 under the MSRP. I would also want to know why there seems to be so many used ones under 10,000 miles listed on CarGurus compared to the number sold/leased.
I would also monitor the long distance charging situation on PlugShare to see if the DC charging situation works for you and how well the chargers are being maintained.