A bug-hunters wet dream. Horribly broken menus (not that you can actually access the options in-game, because apparently this is 1995) and the inability to even fix it yourself because the player configs are in encrypted binaries. Menus are both slow to respond, and hard-coded to use xbox360 controller icons, regardless of control preference (oh yeah and the controls menu causes the game to grind to a halt). Which is probably just there to foreshadow the fact that the mouse controls in-game are abysmal and pretty much unusable. The ship will continue to rotate long after you've actually stopped making any input with the mouse, regardless of sensitivity settings - high sensitivity only results in massive over-compensation from any input, and low sensitivity results in the feeling that you're stirring tar. The standard troubleshooting (vsync, pre-rendered frames, etc) will offer you no remedies here, this is all game mechanism.
This could have the best gameplay in the world, but it's completely irrelevant thanks to an atrocious input interface with the user. Of course in reality, the gameplay is nearly as poor; it's marred by the usual suspects - invisible walls (with enemies that can shoot at you through them, but you can't shoot back - oh and they can do this with some standard geometry too), backtracking and just painfully bland & repetitive gameplay.