So far I'm really enjoying Final Frontier. Firaxis made so many drastic changes to it, that it hardly feels like I'm playing Civilization IV anymore, yet it stills holds that traditional Civ turn-based charm. It's original, it's fun and the 3D graphics on it are pretty neat. Kudos goes to Afterworld, too. I like what they did with the whole comic strip thing with it. Very unique! With as much neat stuff Firaxis packed into this expansion, I feel it's going to be very hard to top with the next EP, if they make one!