Little slow, though. I'd rather wrench open the door manually than wait for that thing. When Musk demoed it he slid in sideways so it wasn't so obvious.
1: omg is there something next to me?
2: nope! ok..open door a bit more..
3: goto 1
I imagine the door flying open and bonking into things would be far more upsetting to customers than a slow one that you can open by hand to speed up the process.