Tried the lane following this morning at 45 mph on a deserted, gently curving road with no traffic and wide shoulders. It kind of gently banked off the center line and the shoulder line around several gentle curves for maybe half a mile before the beeper sounded, the cruise control went off, and I got the "Please put your hands on the
wheel" message.
The haptic feedback is making a better driver of me. I'm now noticing all the places on our curvy roads where I have flirted with the lines for years, especially the shoulder line where I would slightly cut the corners.
I had a demonstration of the emergency braking on my first drive home from the dealer when a stake truck had a transmission lockup in front of me at about 60. The brakes were on hard before I could even get my foot on the pedal. Worth its weight in gold!