I have rMBP too and no I'm not trolling, you must not be using it at the full resolution. If you use Windows at the full resolution for the device, everything gets extremely small, so you have to increase the font/title bar size, even then you have to turn on zoom on IE and Chrome and the UI elements on all Desktop apps is incredibly tiny. Playing games is incredibly annoying because of how tiny everything is. Most Desktop apps do not support scaling in Windows the way one think it would. If you are fine with using one Metro app (or two with one pinned) at a time, then it's perfect.

Even in Windows 10, the new update has issues with scaling. It now caps out correctly (1920 x 1200), but it is blurry as hell.