He was the one I paid most attention to last night (because he was linked to us 3-4 days ago), but to my big disappointment I couldn't see much since Paraguay weren't dangerous. Neither were Peru in the semis while against Argentina he didn't play.
All I can say that he's a giant (almost 2 meters tall) and that for Uruguay Lugano was organizing and leading the defense. Coates seemed very calm and intelligent though.
In any case, at only 20 he was given a starting spot for the Copa America winners and that certainly means that he earned it with his games for Nacional. The potential is obviously there. How will he develop is another question.