Much better than FSD version 11: Very smooth in turns, centers itself in left turn lanes properly now, assertively gets into the proper lane for the next turn within short distances from a previous turn, but rides too far to the right in straight lanes.

FSD 12.3.4 is a significant update. I've experienced what I'd call excessive and rapid acceleration when initiating a turn from a stop sign when using FSD on city streets. In the same arena, it does a great job with control when stopping at a stop sign and doesn't have a full view of cross traffic. It will creep forward and stop until it sees no traffic in either direction before crossing the intersection or turning left/right.

I noticed improvements to several maneuvers that have been consistent issues with v11 and I hadn't retested them with previous V12. Again V12 gets better with each new version.

Speed control is still a major issue. Have to keep accelerating manually to get to the speed limit then it will keep dropping. Setting to Auto results in speed limit being exceeded.

V12 is far, far better than V11 and it is advancing rapidly. My wife finally likes FSD thanks to V12. I am currently on V12.4 and look forward to coming updates, which seem to be coming at about 2-week intervals. The most important thing I want to point out is that V12 is a safer driver than I am when not using FSD. I cannot see in my blind spots and I get distracted, but that is the same for everyone.

needs so much work, from reorganizing locations for lessfinger-taps, voice commands etc. FSD drives like a neophyte pre-teen driver: too late, too abrupt, too close

This is a significant update to FSD. I wish my wipers would stop randomly wiping my windshield on a dry, sunny day.

This is an excellent update for my 2023 Model 3. There are no issues with this update at all. FSD works like a charm.