OK Guys. With all of your endorsements, I challenged myself to using it for a week. Also wanted to see if there was any range savings in using it (didn't notice any). I agree backing up is a challenge. I could only hold out for three days before going back to my rock n' roll.
The killer was this. Try using HOLD when in heavy traffic. Damn, it takes off like a beast and then slams on the brakes (in grinding ABS mode) a few inches from the bumper of the car in front of me. I now know why they call it HOLD. HOLD on to your seat. What a nucking fightmare! I trust my toe on that break pedal. Saves the JERK. But that is why it is an option and an option that I suspect, knowing TESLA, will improve over time. That's what so cool about TESLA, you have a choice. More power to those who are using it in the beta mode. Good luck and good safety. And based on my limited use, I saw NO range advantage, so I have made my choice after two three day trials. Gotta know when to HOLD'em and know when to FOLD'em.