I find it a real shame that there's no 'auto fold' setting for the mirrors when you turn the ignition on and off. It would be so much nicer if the mirrors folded up when the ignition was turned off. I always forget to turn it to that setting.
Also, there appears to be a bug with it whereby if you put it onto the bottom setting while the ignition is on and let the mirrors fold up... then turn the ignition off, then turn the knob back to top center, and then turn the ignition back on, then the mirrors do not fold down again until you select the bottom setting and then reselect the top setting.