A couple thoughts :
- The game's premise is really creative and thought-provoking.
- There's no offline version, so hitting Esc also causes the game to go out of fullscreen mode.
- The game would've actually been more controller-friendly, if it didn't have any controller recognition at all. The controller support that's included does embrace an Xbox plug-and-play model. However, the Gamepad keybinder that's provided is not nearly as flexible as what you get with profilers like JoyToKey. Even in Keyboard Only mode, Buttons 1 and 10 still have controls imposed on them, so I think the game is too in love with the plug-and-play model.
Likewise, it's not true that the main menu *has* to be navigated with a keyboard, since you can put keyboard and mouse movements on controllers, with profilers.