The first day was "Wow, this is amazing" after that... meh. Minecraft in space without the option to build. Just destroy. The aliens feel like props (don't move, don't even feel alive other than their lips move when they talk to you). All the in-depth "you can befriend a species and they will help you" is bull. I spent the better part of a week doing nothing but learning words and could understand approximately 50% of their language with no meaningful perks.
The two best descriptions I have heard are "A mile wide, an inch deep" and "900 channels with nothing on".
This isn't the game that was marketed to us. With all that said, it was a fun little game. But I don't feel like it is worth $60. It is worth the price of an indie game $20-30 (which is what it is). I'm a bit bitter because the whole pirate/alien allies/ships that are actually different are why I bought into it. None of that is in game to the level that they described. I didn't expect multi, they were always clear it isn't a multiplayer game. I didn't expect to build anything, they were clear it isn't minecraft in space. But they did market more depth, and they didn't deliver.
My rant aside, it is a game worth playing. It is cool, just not $60 cool.