I found it really disappointing. I expected it to be a sort of Imperium Galactica 3, but it didn't have nearly the gameplay depth of IG 2, while still having a good bunch of its flaws. I also wasn't too convinced by the economic model and ship designs, at least for the humans. It didn't interest me enough to get really far into the campaign, but story wise, was I saw was kinda bland.
Anyway, maybe my expectations about the game were off the mark, but in the end, I just didn't enjoy playing that game, so I can't really tell what's good about it.