Cuadrado has been great by and large. He has frenetic pace and can tire the hell out of the opposing defence. You can see why Allegri loves putting on as a sub because his effect is magnified when the opponent is fatigued. My only criticism is he makes the wrong choices too often - his footballing brain can't keep pace with his running and dribbling prowess. If he ever sorted that side of his game out, he would be a phenomenon. This is why he is good at attacking right wing back, because the task is straight forward - put in a decent cross and/or get to the by-line.
I would like to see a formation where Cuadrado, Sandro, Higuain, and Dybala are on the same starting line-up. If Pjaca is as good as what I suspect he might be - having him in there would be truly frightening for any defence if Allegri can somehow get the balance right.