the problem: my daughter who thinks she can dribble her iphone on the sidewalk while carrying groceries
a little over a hour of entertainment. hardest part was chipping the shrapnel from around the button while making sure the button stayed in place. since i was "all-in" i had nothing to lose. after scraping off all the old adhesive it was smooth sailing the rest of the way.
make sure you watch the install videos and then go for it!