Wireless Android Auto is THE killer feature!
Finally got Wireless Android Auto working on my S10+ and Pioneer AVIC-W8400NEX. When I bought the head unit they also included a free wireless charger.
It's simply amazing being able to get in the car, set my phone down on the charger, start the car, and have Android Auto automatically start with music playing. I didn't have to do anything. No buttons, no plugging, nada.
Look ma, no wires!