I buffed and polished my sons truck over a year ago with Hyper Compound and Hyper Polish. Knowing that it would be out in the elements in Alabama I decided to Opti Coat it.
My son drove across country for the holidays and the truck looks as good as the day I did it.
The pics are as follows.
First pic is when I buffed, polished and Opti Coated.
Second and third are just this Christmas 2012.