It's not even a shooter. It's an Action/Adventure. Just because you have a gun, does not make it a shooter.

Granted, the controls take a bit of getting used to (especially if you're coming into it thinking it's a shooter). But the game excels in pretty much every area...even controls. It's also got an atmosphere, that only a small handful of games in history can rival.

Maybe you didn't give it much of a chance. It won Game of the Year from some places, and was runner up to God of War at others. It definitely doesn't suck.