I haven't used NoA in a while, so can't comment on how much better it is compared to the previous version but I was pretty impressed. I thought I would have to dis-engage often like I normally do, but I probably only disengaged twice during my 20 minute commute to change lanes because there wasn't enough space I guess and I didn't want to wait. I also hit the accelerator a few times because it was going a bit too slow on the off-ramp, but if I was being patient I probably could have done the whole trip without dis-engaging. The lane changes are much smoother/confident now. This was in minimal traffic, so the conditions were easy for it. In normal bay area traffic, it probably would not have done as well or you would never move lanes.
Here is a short clip on the lane changes starting my commute. When I turned on AP, I didn't overtake it until the last lane change where it was hesitant because car was coming up kind of fast. It probably did the right thing by waiting, but I decided to punch it and make the lane change myself.