I have used those windshield mounts for a number of years, and they are fine. I now prefer the proclip mounts due to style and ease of reach. I don't have to more my hand from the shifter to make an update using Waze, easy finger reach. Plus if you don't buy a good mount for your windshield, they do come off at the most inopportune time.
2012 Focus Titanium Black Manual