I drove about 120 miles yesterday using NOA and FSD. The second part of the trip was about 50 miles of FSD (10.10.2) on a two-lane highway passing through several small towns. It did surprisingly well. I had no phantom braking, no extreme slowdowns. I had constant speed variations where the speed would drop by 10-15MPH because of shadows on the road. It was late afternoon on a bright sunny day, and I was headed south, so the shadows of the trees extended across the road almost constantly. The slowdowns happened almost incessantly and I mostly ignored them.
FSD drove through Bellville, OH with no problem at all, and I never had to disengage. It had quite a bit more trouble in Mt.Vernon, and I had to disengage 5 or 6 times because the car did something stupid. Once I got past Mt. Vernon, I had no more disengagements. The car drove itself through Granville with no problem and pulled up to my destination without further incident.
I did use the wheel to adjust the speed at times, sometimes when the setting was too fast for the curvature of the road, but more often when there was a change downward in the speed limit. FSD ignores the signs warning of a speed change ahead, and it takes quite a while to reduce the speed as the limit drops from 55 to 45 to 35. Since I didn't want to get a ticket, I stayed ahead of it by reducing speed using the wheel.
Overall, I'd say that this trip was better than the same trip on 10.8.1 last week. The biggest difference that I noticed was that the car had no trouble yesterday on a short stretch of red brick road in Granville. Last week, it did not handle this section well at all, and I had to disengage and drive it manually.
Tomorrow I will make the same trip in reverse. It will be earlier in the day, so the shadows may not be as big a problem.
Also today, I let my daughter drive my MYLR. She and her husband are Tesla owners, so she is very familiar with them, but she has never used the FSD beta. I told her that she could try it out if she wanted to, but that she should keep a very close eye on it.
When she got home she told me that she had tried it in a couple of places, but generally found that it was "horrible", and did not attempt to use it again.