On the highway is where openpilot really shines. however; it will work on any road as long as you are going faster than 31 MPH. I live 1.5 miles from work, so I don't use it every day, but when I get on the highway, I never drive more than a mile before I realize the truck would be driving itself better than I am. Haha. I recently went through a bad rain storm where highway traffic went down to 35 mph and I left Openpilot engaged (with both hands on the steering wheel!) because it was able to see the lines on the road better than I was.