Nice production graphics, animation, sounds, gameplay... but campaign is just unbalanced.
Most player don't go further than first chapter.
Here is why :
If you redeem one of last quest once you completed it, an unskippable boss attack you and end your trip.
So the only way is to restart a previous saved game, farm all planets around so you can upgrade your ship enough to be able to kill the "surprise" boss. THEN only, redeem that given quest "reward".
But that is not fun enough for players to bother doing that...