It's a tradeoff. My rental car recently had the fancy modern lane-centering, radar cruise control, etc. I found the car-following radar cruise control to be really nice on a 5 hour drive, but the lane centering was garbage, and I just couldn't get used the drive-by-wire steering. I still prefer to actually be in control of my vehicle.

That said... I had the rental because of an accident that would have been avoided if my own car had frontal collision detection and automatic braking. Assuming it had worked.