I might have the same case! R4 right? How does the asus look in yours? Do you think the Sony might blend in better behind the door with its matte paint?
I have the Arc Mini, the Asus drive looks good. Since the R4 has a door, you won't see it most of the time. If you want the Sony go for it, there can't be too much difference! Also I rarely use my optical drives, if you don't use them much either, then just go with which one you think will look better in your computer case.