Our recent 700-mile trip between San Francisco and Santa Barbara around highway 101 has found 8.1.17.11.10 of AP1 no worse than 8.0.17.8.16 and still more than useful in my applications... it makes straight route drowsily boring if I was acting like an overly responsible pilot monitoring all the mirrors and the displays.
For most of our highway travel being in the day time and mostly sunny, I set the AP to 80mph in 65 zone and 90mph in 70 zone (Waze in the console!). There were only a handful of cases where I had to override to cope with the merging or crossing traffic from the left (the J. Brown scenario). Cresting hills was no problem. Lane changing was a breeze. Traversing through construction zones with cones on one side is no different. It never misread those 55 speed limit signs in any of the construction zones or slowed down. AP1 did corner very well even in the winding sections descending to the Pacific Ocean. There were a couple screams from my wife but I or our kids weren't aware of anything special, so I asked my wife to lower her sixth sense or not to be deceived by those painted lane markings
On some undivided roads to remote parks, AP1 worked well too and proceeded confidently between the grass at 35~40mph which surprised me as it shouldn't allow AP to be engaged but the GPS seems to incorrectly consider the rural routes a part of the highway due to no cellular coverage. It looks like the Mobileye+Tesla system can be more capable.
On busy city streets with central divide and parked cars on the right (one lane on each direction), I've noticed the system was able to identify the virtual boundary as seen in the dashboard, follow traffic, and squeeze through without any problem.
The biggest gripe that I keep always thinking is that the AP1 system is unable to handle stop signs (since it can read all the erected speed signs correctly) and the STOP mark/line on pavement, and my proposed behavior for it could be to stop automatically at the line then let human accelerate by pedal without disengaging itself except making turns.
Hopefully AP2 only changes the sensing part and everything else more or less stays on course.