There's no functional difference in space stations, the procedural generation is pretty limited to the general appearance, and honestly besides the color inside I rarely even notice a difference. There's no skill involved with flying either, when you get close to the entrance, you get sucked right in by an autopilot.
There's very little opportunity for skilled flying unfortunately, though it can be fun to fly around floating islands and crazy land formations on planets.
If the on foot stuff sounds appealing to you as well, the game might be worth it, but if your only interest is in flying I would give this one a pass.