Not a Tesla owner. I sat in a demo Tesla. Infotainment UI looked clumsy. There was no Apple CarPlay. The most basic things didn't have knobs and required touch screen to use. Usability was years behind everyone else.
This was my impression as well (although I just sat on the passenger seat for 150km).
The cockpit is all nice and shiny, but not having any haptic feedback for any kind of regular controls you'd use (switching media, A/C control, etc) is a very questionable choice and a worrying trend among automakers in General. The center screen in the Model 3 to get something as basic as your current traveling speed seems equally questionable from a safety perspective.
I've also seen my fair share of Tesla summon close calls on the neighboring parking lot.
When it comes to the app, Tesla owners seem to have a broad spectrum of opinions. Personally for a car as expensive as a Tesla, the quality of the app would be the last thing I'd care about as I would consider it absolutely unnecessary.
The main thing where I totally agree Tesla is absolutely ahead are OTA updates for car firmware. However, looking at it from a security standpoint, bad security practices could really backfire and from a privacy point of view I'm not a fan of permanently internet connected vehicles either.
