I really like VOX! The only thing that is missing for me is display of the artwork. I know its in the dock icon, but as I use mine on hiding or really small it's no use for me. The over or actually, underlay in the minimal player looks cool, but you can't really see the actual artwork. Maybe it is an idea it gets expanded in an extra bigger screen after clicking on it from there?
Oh and a option to change the font size of the playlist would be very welcome, as that is rather big imo which makes it hard for long titles, and much scrolling for a longer playlist.
Anyway I have a feeling you guys are already working on the above things, but just in case!