I think that he is better than what a lot of other teams have, as well. I'm not saying that he is on the level of RVP/Higuain/Cavani, because he's not.
But if you add him, along with another forward (such as Jovetic, for example), with the midfield that juve already have, which became exponentially better, if that were possible, with the additions of Asamoah, and Isla, and you are looking at a team that again, is a situation where the whole is better than the sum of their parts.
But I'll tell you, Serie A would shake in their collective boots, and more than one team in Europe would be looking at that roster and saying "oh boy. Please don't bracket us with Juve.