I forgot to update this, sorry.
I rolled the rear fenders on my car. They turned out great so far. It took a bit of fiddling around to learn the right angles etc on the first one, but the second was really fast. I had the roll the fender in three 'sections' basically due to the compound curves of our fenders. I wish I was able to roll the rear part where the bumber cover attaches to the fender, but the screws are in the way... I did use a heat gun and laser therm to do it.
One piece of advice, if anyone tells you to 'score' the paint slightly so if it does crack, it won't come up on the visible area of the fender, don't do it!! I did this on the one side, and it started to split slightly were it was scored, and I had to use much more heat on this side area to prevent a large crack...
All in all, it was pretty easy to do if you don't rush it and let the tool do the work. Make sure to use a heat gun too. It is still fast with the tool, about 1/2 hour-45min for the one side to learn the angles, and maybe 10-15 minutes for the other...