Already own this and among my gaming group, its liked very very much. As for 4x (space) games, this has a solid spot high up in my top 10. Very good and fun game ihmo. Good pace, loads of options, replayability and an awesome balance ( rock-paper-siccors-lizard-spock :P ). Gets even better if you get the rise of the ancients addon (almost mandatory). Only down side is that its a few hours play (~(hours x players) + 0,5 hour-ish) and that you need to exploit the obvious strenghts of the different races to beat the balanced humans.
Really, if your into strat 4x tabletop (euro-ish), this is a recommended one!