Had my non-AP car in for some service and drove 2.7.77 for two days on AP and my experience was good, but not great. I even connected the car to my wifi just to ensure that it had another way to 'learn' if needed.
Great and perfect!
Stop and go traffic. Oh what a dream. Car cuts me off? Don't care. Hey, is that blonde looking at me? Err....Traffic moving faster in the other lane? Also, don't care. I'm busy relaxing in my heated seat and listening to the premium sound awesomeness of Miike Snow and The XX.
Good, but needs to get better
At highway speeds with bots dots (no lines, just those annoying round bumps and lane ruts from studded tires) and no target car (you know, the car ahead of you that you are following). I rarely got AP available on I90 into or out of Seattle
Curve speed adaptation is nice and seemed to slow me down a bit too much, but I get that it is conservative, I overrode it constantly on AP and with just TACC so let's hope it is 'learning'
Parallel parking worked and was awesome, but Seattle has a lot of diagonal head-out parking as well, which I'm fine doing myself, but this scene needs to be supported soon.
Not so good
Any road that is not a major highway at speed as there are hills, shadows and very random lane weirdness (sudden width changes, bad markings, construction, pedestrians...etc).
Looks like private property park and summons (autonomous) is gone from the website, wonder if that is truly gone?