If you like Galactic Civilizations, you will *definitely* enjoy this game.
personally I enjoy Galactic Civilizations more than this. But thats my own opinion, theres alot more management required w/ galactic civilizations but once you get into the hang of it its a wonderful game with A LOT of freedom (everything from designing an entire race and their ship styles from scratch and more) plus theres a decent modding community. Frankly I'd say buy it instead but to each their own