I like the theme and how it's related to a space shooter game. The starting screen being a part of the game is creative, and the actions that I do in the game feel "meaningful". This is an motivation for me to keep playing.
Drawbacks: The battle mechanics are quite simple. I believe that to keep the players engages, you either need to have a longer story, or need to change the battling system with a more complex one. But being a short and artsy game, it's really delicate and well made!