Well, it's a good GOG buy, really I recommend it. It's a good game - addictive, sometimes challenging.
Basically: bunch of pilots, one ship and lot's of shit to kill.
Good: great soundtrack, nice story, cool gameplay, intuitive interface and great graphics
Bad: the designs of ships are IMO a bit lacking (like in Sins of the Solar Empire, the ships aren't pretty ;( ), rpg aspect isn't really anything besides "We planned how you should put the points and you really won't put them differently anyway". Um, no voiceacting is really frickin stupid too. And the worst thing of all:
DON'T EXPECT HUGE SPACE BATTLES!
You're a mercenary here, and you have the work of mercenary. You aren't taking part in any bigger engagements (well mostly not, some of them are present)
I don't know if you find this review useful but... i don't really know how to describe it. Watch a video on youtube. You have like 6 fighters, one cow-ship, er, i mean mothership and you try to beat other fighters :P
Though if you liked Nexus: the jupiter incident, you can jump at SW right away