Why yes, yes I do have it, and I am throughly enjoying it. I'm taking my time on it (since I'm rounding the end of school. Tonight is the prank night for the last day of school tomorrow, so I'll be at the school all night doing things for pranks with other graduates. Next week = four parties and two grads. Wooo!)
Anyway. The game has a lot of twists in it, I think anyway. It's amazing with a Duel Shock 3 controller, too. Can feel the rumbles of when you're hit, grenades go off, etc.
Depending on who you help in some areas, since there are the two main fighting forces (PMC's and Rebles), it might help or hamper your progress in some areas, too.
They've done a lot for this game. Since I'm a girl, or maybe it has nothing to do with gender and just fears, I find some of the bosses a little... frightening, for lack of a better word. They kind of got to me, so far. Well, the first one, anyway. Stupid Octo-thing.