[jamincan]

I drive a VW with lane-keep assist and adaptive cruise control and automatic emergency braking. It won't change lanes for me, but aside from the requirements that I have my hands on the wheel, could otherwise drive itself on the highway.

I commute mainly on the highway about 45-1hr each way every day and it makes a big difference for driver fatigue. I was honestly a bit surprised. Even though, I'm steering, it requires less effort. I don't have my foot on the gas and I'm not having to adjust my speed constantly.

Critically, though, I do have to pay attention to my surroundings. It's not taking so much out of my driving that I can't stay engaged to what's happening around me.