I was super bought into carplay and android auto until I actually owned a car that had it. Oh great, it requires USB. Well my phone is 4 years old and the port is toast, so that doesn't work for me. Okay, wireless then. Car doesn't support that. Lovely. Bluetooth implementation is half-assed and the pairing process is Byzantine. Terrific stuff.
That car ended up sucking in other ways too. I quickly sold it and went back to buying old Lexuses. Wireless charging phone holder, and off you go. The siren call of infotainment is powerful, but actually living with it is just more fiddly bullshit I don't need in my life.
I've used it in other cars and the experience just wasn't great. I've had plenty of rentals with Android Auto.
Honda is the worst. In two different Hondas, I had to make sure I didn't plug my phone into the blessed USB port to charge, otherwise the wireless AA connection would drop 20 minutes into the drive and I'd have to re-pair manually. And wireless would crap out every hour or so.
Mazda was wired-only, which was fine since my phone was new at the time. But Android Auto was clearly not designed for Mazda's otherwise very good non-touchscreen HMI.
Both Hyundai/Kias I've rented took a solid 90 seconds to pair every time I got in the car.
In a Chevy I rented, it would either pair up instantly and work perfectly or it wouldn't pair at all, depending on the alignment of the stars or something.
BMW's implementation worked great, too bad the rest of the controls in a modern BMW are idiotic. And also I can't afford one.
I've had several Toyota/Lexus loaner cars. Those worked fine, to my recollection.
Maybe I'm cursed, but at this point I don't particularly care. My real, honest-to-god experience with smartphone connectivity in cars is this: the most reliable, user-friendly, brand-agnostic experience is a bluetooth adapter shoved in the cigarette lighter, and a phone holder on the dash.
That car ended up sucking in other ways too. I quickly sold it and went back to buying old Lexuses. Wireless charging phone holder, and off you go. The siren call of infotainment is powerful, but actually living with it is just more fiddly bullshit I don't need in my life.