Its a good game, sometimes it feels like cross between Alpha Centauri (random events, bizarre techs, simple tech tree) and Sins of a Solar Empire. (space battles and ship classes).
Its a classical space opera, so you can expect the usual factions, the Evil Empire, the Pacifist Aliens, The proud warrior alien race, The Rebels and so on, you can also make your own faction. The Battle system is interesting, but sometimes you can ignore tactics and Tech and just mass produce ships and win all the battle against the computer using superior numbers.
Overall its a fun game to play against the computer, but the multiplayer is way better.