I had my first long run with AA today and overall I faired well. Pixel connected to 2017 Audi A4 fine and launched AA. Some brief observations from 6 hours of driving today, more than 5 of those hours on the highway.
At one point I noticed some artifacts on the car screen while Google maps was in night mode. Seemed to last about 15 minutes. Also regarding Google Maps, the alternate route pop ups (the squares that pop up to show an alternate route will be 10 minutes slower while driving) are not accurate and confusing. At one point I had the option to take 1 of 3 routes at a junction and the square popped up but I could not tell which route it was referring to. It's much more obvious when using it on the Pixel.
On the first 2.5 hour leg of my trip I was using Google Maps and Pandora through AA and on four separate occasions Pandora randomly switched to Google Play Music. Nothing like going from the middle of White Christmas to the middle of Blackened in the blink of an eye. This did not happen once on my 2.5 hour trip back.
The only other thing that did not work as expected was voice commands. When connected to AA and pressing the talk button on the steering wheel I am supposed to be connecting to Google voice commands but instead I am connecting to Audi MMI voice commands.
This was the first time I used AA so I'm still in learning mode.