Oh this game... its more of a guilty pleasure than anything else. The graphics are good, and there are tons of real world guns to murder stereotypical terrorists.
The gore is so over-the-top (throw a grenade down a hallway and several limbs come back at you) it's funny, but it does get old.
It feels sluggish and it can be glitchy at times. And (particularly on hard) can be downright cheap, but for around 10$ you can't complain.
If you love shooters, and if you love shooting dudes in turbans with guns (which if you are an American you obviously have an erection when I said that) this is right up your alley.
Otherwise, just rent it to laugh at the gore.
"Hey, I found some C4 strapped to a dead guy!"