I've had a Tesla Model S for quite some time now. It cannot reliably adjust the high beam / low beam nor the windshield wipers. Those problems seem a bit easier than full self driving.
Model Y here. My automatic wipers are mostly okay except sometimes they seem to get obsessed with a tiny speck of bird crap they can't remove. High beam/low beam is a complete cluster f*ck: It gets fooled by highly-reflective road signs. So I adjust headlights manually, just like I have done over my entire driving career.
The phantom braking is the biggest deal: The car slams on the brakes in the middle of major highways in good weather just because it's a hot day and the camera saw a mirage and the car thinks it's about to drive off a cliff. This means the cruise control ("autopilot") on the car isn't even as reliable as "dumb" cruise control on a 20-year-old car, so I rarely use it.
The phantom braking is the biggest deal: The car slams on the brakes in the middle of major highways in good weather just because it's a hot day and the camera saw a mirage and the car thinks it's about to drive off a cliff. This means the cruise control ("autopilot") on the car isn't even as reliable as "dumb" cruise control on a 20-year-old car, so I rarely use it.