Most people moaning haven't played it. So yeah I guess all you have to go on are the reviews.
This game is 2008 revisited. In 2008 this would have scored highly.
It looks ground breaking from a graphical standpoint but the gameplay is standard.
People keep mentioning Gear Of War but this is more of a Last Of Us clone than anything. The only things it misses is characters, structure and level design. The core gameplay is there. The shooting is good.