A wonderful universe, lovely art design, innovative ideas (some that even worked well), but an ultimately broken game. Too many irritations and bugs, combined with substandard AI. There are too many better uses for your time and money, including the much better SoTS 1.
I have to recommend avoiding the developer as well (Kerberos). They bit off far more than they could chew, releasing an utterly broken game when Paradox refused to keep pouring money into their personal black hole. To their credit, they did continue to patch the game for well over a year but there was just too much work left to do. To their detriment, they have a history of this and of dodging the responsibility. Fort Zombie was DOA and never really finished, and the original Sword of the Stars is now an excellent buy but took over a year and several paid expansion packs to get there.