Looks like a nice unit.....my XF is garaged and only sees sunlight during an occasional run.....none this time of year as it's up on blocks for the winter. So the battery would be most likely flat when needed.
I also prefer the auto reverse on function over pushing a button. The one thing I've determined is that the screen in the rear view mirror units are way to small and also that the mirrors that have a blue tint
are worthless at night. 4.3" screens seem to be about right.
Thanks for posting your experience.