It got it's highscores for it's story and technological impressive ness.
IMO:
Pros- Most realistic Open world ever created.
Great Physics
Very Good Story
Cons- Gameplay seems lacking
Lack of offline Multiplayer.....
Still feels like a game filled with bugs and glitches [better than the past games though]
Not much customizable options....
Does it deserve game of the year??? No.
Did it deserve it's review scores??? Depends on how you look at it.
4 ≈ One