I have FSD but the NOA is the thing that separates the birds from the bees. Using NOA on my weekly 150 mile one-way commute the car drives itself. I just supervise. I rarely have to intervene. Occasionally the car does not change lanes to pass a slower vehicle as I would prefer so I simply initiate the pass using the turn signal. That is rare. Most of the time the car changes lanes on it's lonesome and passes the slower vehicle perfectly, returning to the correct lane as it should. If I had been asked a year ago, when I first started using NOA, I would not have been very enthusiastic. Now I would say it's the snake's hips, the bee's knees in traditional 40's speak. NOA is the one thing I would not wish to do without, the big difference on my commute between driving the PD3 versus our really cool 4 Runner. Why has my opinion changed? NOA is way ahead of where it was a year ago. But just as important I have learned how to use it properly. There is a learning curve that a trial of a few days will never put right. I will add that my commute is on an 80 mph interstate will little traffic, so there's that.........still.........it does fine In city freeway traffic here in Montana. But that ain't the LA Freeway or the Cross Bronx Express. if I had to go back to no NOA I would say humbug...........ain't doing it..........The point is to put opinions about NOA into the perspective of when, for how long, and the conditions of use. I am not now a fan of the city driving stuff included with FSD, traffic lights, blah, blah, blah. However, I will hold judgment based on these features being in their infancy and me not caring enough to even bother to learn how to use these things properly. In any case, none of these features are turn-it-on and zone out......you're either on the bus or off the bus........