If you get a chance to see some in person, you might like them even more. Everyone that sees mine in person after having seen them in pictures says that the pictures don't do them justice. The finish and machining pop better in person. I'm sure that's true of most anodized and machined wheels though.
I'm not a huge fan of black wheels and was a bit hesitant to buy them. I was going to get all polished. After getting them on the car, I'm very glad I did buy them in black. My friend has the all polished version on a C6 and they just don't look as good.