Edmunds has a Model 3 for a long term test now. Here is their first video review (very complimentary overall). However...at 4 minutes and 20 seconds or so he states about the chassis:
"
...it really feels sorted. Where it falls down, for me, is the ride on roads that aren't really smooth. Something about the dampening is just a little off and it feels busy."
Honestly, almost every material review I've read notes the firm ride. Heck, in this month's Motor Trend the Model 3 was a finalist and they have this comment: "
The Model 3's punchy torque and laserlike handling impressed every judge who buckled in - though at the price of decidedly firm ride quality."
Conversely, the comments for car that won their car of the year (the
Alfa Romeo Giulia) were "
It handles absolutely beautifully, with light linear sports-car-like steering." and "It rides like a luxury car with no impact harshness in the cabin, and it's downright quick."...proving you can still have your cake and eat it too.
My experience with cars that get this ride/handling balance a bit wrong is that it gets OLD over time. BMW, historically, used to nail this (indeed it was THE thing that made me love those cars), but even they have struggled in recent years (the whole first generation of run-flat cars were a good example).