Dropped about half way through because of frustrating controls, design and the dumb reset timer.

Positives:
The way the solar system works in real time is incredible to see.

Negatives:
Controls are really bad.
Level design is frustrating.
You are on a timer all the time.
You can go anywhere. Will the story still make sense? no.
The journal doesn't work as good as it could.
I went the wrong way or assumed there is nothing more to see when there was like a dozen times just because of bad level design.
Died and had to start over because of controls another dozen times.
The dialogue is quite bad, also no voice acting.
You only get a planet "map" while you're on foot for some reason, so you have no idea where you are while in the ship, so you want to move faster to tell where you are and get to places and then you get punished and die for that.

If I had the patience for all of that I would probably see the ending and it might even be worth it, but I don't.