My comment on this list would be that "yes, these all work reliably," but the caveat is that the manner in which they work is sometimes poorly designed. For example, moving the steering wheel is done on the lower screen instead of on the steering column like every other car built since 1910. You get used to it, but it's dumb. Using the radio takes more swipes to get it to come up on the large center screen, and it doesn't stay there - it reverts back to the small screen, which is dumb. The seat adjustments can be done on the seat (i.e. traditional) or on the center screen, but if you change them on the seat, you can't save it -- you have to go back to the center screen. That's dumb. The backup camera and birds-eye 3D view is awesome...but only if the car is already "awake" when you put it in reverse to start backing up. If you jump in, put it in reverse, and start backing up, you're likely to not yet have backup camera or birds-eye camera view for about 20 seconds. That's dumb. The car's tendency to "sleep" and then take a while to "wake up" is frustrating and becomes a game...you train your mind to go to the phone app a few minutes before leaving wherever you're going becuase that makes the car wake up and it is immediately available to you.
I suspect (hope) they are working on a big fix that will alter the main screen environment. A few strange choices on the main screen home page. For example, instead of radio controls it has a permanent button for the glove box. (?). Tesla's glove box button is smarter. No ability to drive past 10 mph with cameras on, as you can in Tesla.
Honestly, I have not found any electronic feature to be consistently unreliable, other than the sleep/unlock problems. You can consistently rely on waiting for the car to "wake up" if you use your phone app as the key.