Let me say first that I do hate Win8 with a passion, and that I believe that it's going to be the second coming of Vista for Microsoft. Metro makes no sense whatsoever on the desktop or laptop, and trying to force this cr@p down people's throats is going to cost Microsoft dearly.
Anyway, with this off my chest, what I do like is its Move/Copy dialogs, which are an improvement over the ones in Win7, which are already quite good, too: Lots of information readily available and easy to read, in nice large fonts. Any chance you guys might steal a page out of Microsoft's book, in this respect only?
Oh, and as some added value, it would be awesome if, when there are conflicts, we could get a lister window (by clicking on a "Details..." button, say) that lists all of the files with conflicts, and that includes all of the power of Opus with regards to selecting, renaming, etc., etc. Thus we could batch rename files there if that's necessary. Deleting files in this lister would remove it from the Move/Copy operation.