When I was trying to decide what to do with my aero covers, I desperately wanted to see images from those who had done it. There were precious few at the time, so I thought I'd toss this up there to help others. I bought a second set of covers and painted one set to match the white, and one in metallic silver. Here they are in comparison with the bare wheel (sorry that I don't have a factory gray one to put in the mix.
I found a local pro who does projects on the side. Cost $150 per set. They are REALLY nicely done. Interesting how the slots look smaller on the white ones, right? It is because the white doesn't make the dark shadows.
And now perhaps my new avatar makes sense.