I speak of Aruba, Blue Steel, Green Eyes, Z, and other little better as Pixos and Thunder Storm. Any Mac user will reject it immediately. Windows and Linux users are accustomed to any non-harmonic interface. The Mac user sees JRiver a couple of minutes and it is impossible to convince him that it is the best media player on any operating system. Obviously none will search the forum as changing those skins. What the app default dresses is supposed to be the best for their users.
Work on the software can be very good. But the design makes it look better and more professional other worse options.