It was fun, but not overly so...
This game was good.
I liked the action. The action was smooth and interesting and frequent.
I liked the weapons. The weapons were varied and frequently occurring enough to give you a chance to try them all out.
I liked the Powered Armor. It was cool to be nigh indestructible for a short while. The enemy having Powered Armor and me being without was tough to get through.
I lliked the intel (written clues to the backstory). I did NOT like the scarcity of the story itself. I kept reading all these interesting tidbits about characters I never saw or actually heard from in the game itself. The gameplay, while fun and well done, became a little stale towards the late middle of the game through to the end.
I did not like the environments. While they were beautifully rendered, most of the environments were the glorified "tunnels" we have all come to expect and loathe in FPS games. And I hate it when my character, who is capable of jumping, cannot seem to jump over a one foot high pile of rubble. Next to invisible walls, it is my least favorite thing.
*Here is the main spoiler in this review*
Everybody dies. I did not like all the characters die (except the villains). Don't spend a day or two making me like a character (or two, or three) only to kill them. Let at least some of them live, will ya'?
In summary, this was a good game. I liked it and will probably play it again just before F.E.A.R. 3 comes out. It could have been so much better with some extra writing and character expansion.