Playing off the shoulder is where he wants to be. His touch and protecting of the ball really needs work, so he's not effective as the hold up man. Isn't really sensational at winning headers either. He is a 6'3" modern striker who wants to run in behind. But he doesn't have as much space for that in Serie A as he did tonight.
Still, I think the international break was good for his confidence, and he clearly loves having Di Maria around.