No distortion and easy install! Love the look of the mounts so much more than the standard clips. However, you may not be able to install in between two windows (or other protruding features) due the need to slide the mirror in place. I had to get creative with my install for these by installing the bottom mount and one end of the top, placing the mirror in and sliding over far enough to screw in the other end of the top mount, leaving the middle screw hole empty. This wouldn't be possible in a super tight space.