Yes, he is exciting to watch and we have only seen a glimpse of what he is capable of. Deco was not even the same stage and age that Diego is now. Can't wait to see just how good Diego will be.
Don't get your hopes up. By the time he does get "that" good, he'll be gone to Real or a team like that.
Another 2 more years and Pinto De Costa will be selling him for $30 million Euros to the highest bidder. Then Marcio Sousa will be 20 and it starts all over again.