My C-mod 2010 grille was installed on my winterfrost (white) AC late yesterday. I had my favorite mechanic do it -- it took him about 15-20 minutes. Before installing it, we pondered the question "to paint or not to paint", and decided it would look best in unpainted matte black. I am very pleased with the results. Fit and finish are fine. These pics don't do it justice -- it looks nice, simple, elegant, politely aggressive, not cheap and flashy like the stock grille. (Car was slightly dirty, too.) By the way, it appears that the mesh can be temporarily removed, so it is possible to paint the plastic grille frame whatever color you want and leave the mesh as is. Here are a couple of pics:
