Unfortunately, the devil is in the details of that "essentially" and "simplified UI". CarPlay seems magic (though admittedly I don't own an iPhone), but Android Auto has been riddled with problems around whether the deck or the phone has control, weird memory leaks, and critical controls or settings missing from the "simplification". Every time I've used it as a passenger, I find myself unplugging the phone, fiddling with the Maps or music UI on there, and then plugging it back in (often only to find out that the pairing got reset somehow and the car needs to be put in park before I can complete the onboarding again).