The action was intense, not sure if I'd say surprisingly brutal. I didn't ask any campaign length questions. I only played for a about 5 minutes, it was good what I played.
I probably didn't elaborate properly, what I was referring to was how punishing the game is, especially with free aim turned on. I'm really hoping for a 10+ hours campaign here and knowing how R* are always after giving every penny's worth, I don't think I'll be disappointed.
In that case, I can see people saying that, I died a few times during the demo. Now part of that maybe because they drop you in the middle of the ☺☺☺☺ and you have to learn the buttons quickly another was I took a PS3 version over Xbox because that was available first (used to the Xbox controller more), and another is this game will indeed be very difficult especially on the harder difficulties.