I have a 2019 Fremont Model 3 (with a bit over 70k miles on it). Build quality been acceptable - but not perfect. The driver seat wiring harness got pinched and damaged by moving the seat (fixed under warranty). The rear trunk wiring harness was also replaced under warranty. One of the buttons for adjusting the driver seat was also replaced under warranty.
It's moderate rattley (I haven't done anything about it but a subtle rattle from near the lights on the ceiling).
Otherwise mechanically it's been solid.
IMO, day to day the biggest drawbacks of cars of this era are suspension / ride quality, cabin noise, and seat comfort (that one is a bit subjective, I personally don't like my seats). New cars (Highland Model 3 Performance, in particular!) improve on all of these areas, and generally feel like they have a higher end interior. Highland Model 3 really feels like a totally different car inside, almost every surface and material has been changed.
It's moderate rattley (I haven't done anything about it but a subtle rattle from near the lights on the ceiling).
Otherwise mechanically it's been solid.
IMO, day to day the biggest drawbacks of cars of this era are suspension / ride quality, cabin noise, and seat comfort (that one is a bit subjective, I personally don't like my seats). New cars (Highland Model 3 Performance, in particular!) improve on all of these areas, and generally feel like they have a higher end interior. Highland Model 3 really feels like a totally different car inside, almost every surface and material has been changed.