It's definitely aged a fair bit but GTA IV is still Rockstar's crowning GTA achievement, particularly in terms of character and story direction; Niko is still so much more interesting than the cold blooded killer counterparts that have come and gone with the series. That being said, when he starts to question the morality of his decisions and his seemingly innate violence later in the game, I was in the middle of driving so fucking fast that I had killed at least 15 random people and a few cops on the sidewalk. I suppose it's just something that video games like this can never escape - it's just too much damn fun to be a bit of a murderer even if the protagonist is having a bit of a midlife crisis about being a murderer.