I usually hate FPS game but I like Metroid Prime 1 and Metroid Prime 2. Maybe it could be the fact that they are different from other FPS games and you get unlimited bullets or "beams" as they call it.
The storylines kind of goes like the rest of the Metroid games and their's Dark Samus which is supposebly an evil clone of Samus. The graphics are great then again is their's really any games these days that don't have below average graphics? A really cool part is that you can form into a ball as in every Metroid games. It's good for dodging enemy attacks if you want to get out of the quickly.
Do you hate FPS's? Then you just might like this game (and Metroid Prime 1). Now I hope to see what Metroid Prime: Hunters is like.