I used to like those things, but then I didn't know any better

JK.

They are cool, depends on the look you are going for. I don't think it looks right with a CF hood. The only time I'd use that is if I'm driving long distances.

Those clear sticker types work good also, but then all the ones I've seen turn yellow over years or crack... then there's the edge of the clear-tape that you'll see.