It’s personal preference, but I hate the convex mirror on my hard doors. Maybe my vision isn’t what it used to be, but it can’t see anything in those convex mirrors. I switched to
rectangular flat mirrors. There is a light vibration, but without doors I just reach out and touch it if I need to see in more detail. My arms are homemade and I think they are much of the source of the vibration. I have been meaning to try a dampener in between the mounting points, but honestly it’s not that high on my list.