I did it with Rhinoliner. I think it looks much better. That plastic trim and the screws holding it down were scratching the bottoms of my doors. Especially when there was a little snow and grit on it. Now there is plenty of clearance.
I used brush on stuff. I think that is a good way to go so you don't have to worry about tapeing off the surrounding areas. It went smooth and easy for me, plus with brush on, if you chip the finish It would be easier to patch it up without messing up the look. I could get a picture for ya, but don't know how to post it.