I picked up my MS on 12/10. Here's a couple of thoughts about my early experience.
1) I get a lot of people checking me out at lights and on the roadways. It's kind of like having a shirt on inside-out, but it's not me they are looking at.
2) Little things like yoke turn signals automatically cancelling after making a gradual lane change are pretty cool.
3) Instant torque and acceleration are addictive.
4) New features are discovered daily.
5) I've had two software updates so far. It feels a little like birthday presents.
6) The car is tight, quiet, and feels rock solid.
7) The voice command capability for controlling features is robust and fun.
8) After some flickering of the screens, I did a reboot. It seemed to make all screens quicker and smoother.
9) I can't imagine ever voluntarily going back to an ICE car.
10) Charging at home while I'm asleep is way better than going to a gas station; especially since I have a home solar system.
I just need to figure out which one of my passengers keeps farting. That darn emissions feature!