I have been happy about the mount, until today. I was going down the road when my $500 STi Driver fell off the windshield, hit the dash, and landed on the floor. The rubber cup was on the windshield, the rest of the mount was still attached to my STi Driver. Here's pictures:
Ordered it around Christmas, got it in January. Used a total of about 20 times. So it cost me $1 each time I used it, back to the old mount I guess.