Piloting is confusing, especially if you're coming over from KSP or flight simulators. That's because the nav circles have two problems. One: They have only two axes instead of three, so you can easily find yourself in a position where it is difficult to change your direction the way you want (if you're pointed near the zenith, to be specific), and Two: they are a radically different control scheme with WASDQE compared to a normal flight control setup.
One of the most important features for my enjoyment of the game is more Kerbal-like controls, even if just an option. WASDQE will actually pitch, roll, and yaw the craft instead of rotating its altitude and azimuth. For kraken's sake, it's a spaceship, not a dobsonian telescope :P
@AndrewGarrison Perhaps, but for example, SAS in Kerbal will prevent drift in yaw and roll while controlling pitch, or yaw and pitch when controlling yaw.