I, personally, loved the game. To me more of the story lies within the game itself other than in only the missions.
The main thing that I liked about it is that you had a lot of freedom in it unlike X, I am not saying that X isn't good, because it is good.
I really love the way X-2 ended because the way X ended was kind of depressing, it was to me anyway.

And another thing, did you know that it is possible to get 100 percent complete on the first play through.