This looks 'next level' to me. As in, The game that defines the way the industry goes next. GTA IV was awesome in it's size, scope and story-telling, but compared to that this game is immense. I don't think any game has done the 'three way character involvement' on the same mission the way this clip showed that office complex scene.
I was kind of hoping to leave this for a while when it came out so the price would drop, but I can't really see that happening in reality.