I was able to test drive an LC non-premium yesterday. I'm very impressed with the ride quality. Only thing I've driven that comes close is a Cadillac SUV but without the wishy-washy steering feel that the Caddy had. I was initially concerned when I heard a loud humming sound at highway speed. I immediately ruled out the engine as it was at 1500 RPM at the time. I noticed that the port had installed cross bars on the roof rails which were likely the culprit. I remember reading in another thread that those can create quite a bit of noise.
The body roll that reviewers are reporting is definitely a thing. Not so noticeable in normal driving and cornering, but if you happen to swerve to avoid something and immediately correct, she wobbles like a weeble. I think it's a fair trade-off for that ride quality, considering the height and weight of the vehicle, but I imagine some people might be looking to stiffen it up a bit, particularly if they have riders that are prone to car sickness.