Lets see. Played it for a couple hours at a friends house who just got this and Zelda.
Not impressed at all. The controls, horrible at first. You will then get used to them, but they are not the best and there will be games with much better.
Storyline is generic, voicework is so bad its laughable. AI sucks, they just stand there and do nothing. Music and gunsounds are good however.
Graphics are UGLY, worst than xbox. It worse than Halo 1 in some aspects which was a xbox launch title. (No bump mapping, low res textures everywhere) Explosions, lighting and particles are nice however. Framerate is SLOWW.
Multiplayer is pretty bad... only 4 maps and they are all mostly similar, it seems pretty boring at times because me and my friend could never find eachother and when we did, we would always miss because of the even more HORRIBLE aiming in multiplaeyr. Split screen is pretty mediocre.
Overall, lame game, repetitive, nothing new and everything seems unpolished and buggy. Its fun for a while i admit, but the controls are even worse than a standard controller. When comparing this to top notch fps like Halo and Half life, this doesn't compare at all.