I did a test drive at the local dealership recently in Colorado. While the technology was quite cool on the highway, I would not rely on it to get me anywhere for at least another 2-3 years, even in light traffic, normal daylight driving conditions with no unusual behaviors from nearby drivers. It makes some very questionable choices, and actively put me in dangerous situations. I was curious to see how it would behave in certain circumstances and kept hand hovering on the wheel ready to jump in at any second, and it proved necessary quite continuously.
When an on-ramp was merging and the white line in the rightmost lane disappeared as the new lane tapered inward, the car would veer to the right to follow the new white line, potentially cutting off anyone merging, and also alarming me as the driver that it was leaving the current lane to join the other one.
With the FSD navigation turned on, the car missed its highway exit several times and didn't alert me as the user that it had done anything wrong.
When I got it to take an exit ramp that ended in a double left (of which the second left also had an option to go straight ahead to merge back onto the highway), the car attempted to turn left, and then froze in the middle of the intersection and panicked and asked me to take over. This was a pretty rudimentary navigation and it failed miserably, leaving me in the middle of the intersection.
That being said, it does have some fantastic tech in it and I'm quite excited to see it continue to evolve, but if I were to plug in a long stretch of boring Wyoming driving, I wouldn't trust it to get me there in one piece.