First, let me throw in this disclaimer: I am a big fan of the direction Tesla is headed with all of this. It is certainly not perfect yet and I fully understand that. Patience was a prerequisite when I bought the car so I knew that going in. The car, BTW, is AP2 capable.
I am happy to read the many good experiences others are having with this latest FW update. I migrated from .26.76 and when I got 2017.28 I was so relieved that this version was performing so well compared to what I had. Unfortunately, this version, while still a bit better, is regressing just like .26.76 did. The last two days of driving have really started to test my patience and makes me feel like I am taking one step forward and two steps back. A week ago, when I first received this update, everything was great. Over the last two days, not so much.
As examples, here are a few of the before and after changes that have taken place over the last two day. All cameras and sensors are clear of dirt and debris:
1. Before: lane keeping was excellent. Stayed perfectly in the lane and navigated turns flawlessly. Now: hugs the left lane line far too much and is almost dangerous in many situations.
2. Before: excellent at reading the lane lines and remaining steady within them in all situations. Now: jerks back and forth each time the freeway pavement changes from asphalt (dark) to concrete (light) even though the IC shows it is reading the lines perfectly. Many times the jerking gets so bad AP disconnects itself.
3. Before: passed under all overpasses and signs with no problems. Now: does short, rapid decelerations when approaching many of the same overpasses and signs.
4. Before: lane changing was as smooth as advertised going both left and right. Now: transitioning left is so slow before it makes an actual move that I have had to abort the change many times as cars coming up on me, which were quite a ways back when I initiated the change action, were now coming too close for safety. Lane changes to the right are far better than going left but I did have two instances where I had to abort the change as it was taking place as the car was driving me straight into a sound wall.
5. Before: while in close proximity to other traffic on both sides and in front the car handled everything flawlessly. Now: similar situations causes the car to jerk back and forth, almost in a panic mode, until either I disengage or the car does it on its own.
6. Before: handled all merging traffic in a polite manner (set at 7). Now: FCW and the red car in the IC happening far too often and in situations that are completely unnecessary.
7. Before: a happy smile and happy wife. Now: "AH, COME ON!" or "WHAT THE F*#K!!" and gasps from the wife along with "What was THAT?" (Fortunately, I have a very understanding wife who, for now, is tolerating this behavior.)