Doesnt' work well in our areas, it gets very confused when to stop, when to start, which one has priority. Combine that with timebound speed limits where there is a little white sign below the the speed limit sign that gives a restriction between certain times, or sometimes a only valid between those times. Or then when it's raining the speed limit changes. Nope I've never driven a car that is faultless at this. So you are in annoying beep heaven/hell.
It does not do well with timed speed zones here either. It just assumes that the posted speed limit is always in effect. When this happens (going the timed speed limit while not in effect) I just press the "fun" pedal to speed up. I have not had issues with other sign recognition (even temporary) due to rain. Here in the US, we do not have these beeping alerts (not required by law), so we do not get nagging (which admittedly would be annoying).
I can see how all of these would be an issue, but the purpose of the visual based approach vs. mapped is to work towards a good solution that can handle the real world.
I think it is important to remember (not speaking to you specifically), that we are working towards amazing things. We do have to start somewhere, much like looking at an early 2007 iPhone vs. a 2025 iPhone 17 Pro Max. It takes these annoying issues to get to where we strive to be.
I see my parents in their late 80's essentially trapped in their house, only leaving for medical appointments, and minimal food shopping and I think, how much better life would be for them if their vehicle could do L4. So, I do my part now, hoping that by the time I am their age, 40 years from now, we will be there. By my part, I mean using FSDs as much as possible and reporting any critical disengagements. Since the last major update at the ending of 2024, even with my older hardware 3 FSDs, I see a clear path to this. It is not perfect, but every year since I've owned my vehicles, I've seen significant progress with self-driving. I used to report critical disengagements regularly, now, I can't remember the last time I did. Disengagements now are basically because I am impatient and more of an aggressive driver in the NYC area.