These were a lot of fun.
If you are afraid of heights, then I strongly recommend that you not look out your car window.
They were performing some road maintenance near the bottom so I had to wait a few minutes for the tractor to get clear. The weather was great and I visited with the man holding me there. There were a few wide sections up on the switchbacks where you can pull over and take photos. This is trail #45 (rated easy) in Wells' book and trail #1 in Massey's book (rated 3).