Basically the reflective tape/film is just like the stuff you see on traffic signs. There's films that are labeled as three year, and stuff that's seven year. Now traffic signs stand out 24/7 in the elements and they hold out well. My bikes spend at least 8 hours a day (minimum) indoors, so weathering isn't an issue. There is no difference in cleaning.

The films could conceal damage on carbon fibre components, but I doubt that it would cause it. However, if I was applying it to carbon fibre I'd make sure NOT to cut it on the part, and I'd only use a narrow trim (as opposed to a complete wrap). My bikes are all metal, so I don't fear tape caused damage. As to the finish of my bikes, I did decide to replace panels of the film on a couple of occasions due to crash related (cosmetic) damage. Actually, the films protected the factory paint job. Removal required a lot of "GOO Gone", and some elbow grease, but I lost no paint from peeling it up.

Rubberside Down!
K'Tesh