Mine's a 2018 LR RWD, HW3 upgraded in Feb 2020. Also 2021.32.22, was batched together with the big dump that came at 3:40am Saturday morning.
My biggest, most loud complaint about Autopilot right now is its incredibly lethargic response to external stimuli. It's so laggy, I am genuinely concerned that it'll ram into stopped cars some day - and it's a fairly big mental load to balance everything. But my experience has 100% been that "Autopilot masks everything" - the more I use AP, the more a 100% score I'll get. I'm still at 99 average. Desperately hoping to finally get FSD Beta after numerous attempts over the months. It didn't take much change to driving to eliminate other factors, but "following" is ridiculous; I wonder if something is actually affecting my car that makes it so glacially laggy to respond.
Second most annoying gripe is its tendency to brake for any kind of flashing yellow light on a sign, or accidentally notice a train-traffic signal as my own signal - today I even had it brake out of nowhere while a yellow light flashed somewhere up on screen! Traffic light detection is madness, and I suspect they stopped developing it after FSD Beta started development on an all new stack. But... having light detection enabled masks any kind of hard-braking to catch a light, so I keep it enabled for peace of mind.
I never really hear much from other people about this maddeningly laggy response to anything acceleration- or braking-related on AP. It used to be, prior to the "no-radar push", that AP would be pretty well glued to the car in front. I could even tell if a car I'm following was a stick-shift, feeling the clutch lag their acceleration and thus mine as well. Now, not so much. AP accelerates like it's asleep, 2mph per second acceleration. And when I roll down the speed limit as I see stopped cars ahead, it's like "yeah that's nice" and decelerates at 2mph/sec until it finally notices them, and grinds on the brakes to stop in time. I'm legit weirded out that folks aren't yelling about this.