Hi!
I've played this game and it was great!
The only bad things are mainly the difficulty peek passing from Level 2 to Level 3 (the first level it's easy, once you understand what to do).
So I suggest you, to highlight your goal in the game (took me a while until I discovered what to do) and to lower the difficulty peek.
Why do I say that Level 3 it's hard as hell? Just because most of the times the Aliens will stop in a room (if you're lucky they'll stay togheter and then you can win the level easily, if not you won't win.), and to regain power you need to have all the systems fixed, or you can have only one damaged and the rest fixed and then wait 'till the power is back and win.
When an Alien sposts you, in the 75% of cases, you're dead (expecially if you're against two of them) because once the see you it's starts chasing you, so you start to run, but your stamina will end soon and always before the Alien (that has infinite stamina maybe?) and then you die.
Sometimes you won't regain stamina, so you're left there without the power to run, and so you're doomed.
I've completed every level, so I'm happy about that.
I would give it 8/10, just for those things I mentioned before.
The game is playable, the graphic is nice, so I suggest you to give it a try.
If you're planning to do another game, try fixing the upstated things and maybe it will be an amazing game.

By the way, I made a Let's Play video about it (it starts after, about, 2 mins) and you can watch it here (if you want): https://www.youtube.com/watch?v=CCq1BChxwRM
Let me know what you think of it.
Thanks!!