it's been almost a year since I have, and always gel sticks very well, sucker still holds very well (never fell off the windscreen). At first I was a little reluctant to the reliability of the gel. but after a year (almost) I had to wash it once and always gives me as much ease of setting up the phone and all access to my phone (Google Nexus 4). I note that the surface of the back of my phone is smooth which I think allows it to adhere to frost.
