Improving amazingly quickly. But still a bit patchy. At times this summer he has served gallons of aces and service winners in a row, and at other times he has missed first serve after first serve after first serve. But when his serve is on, it is untouchable as much as Roddick's if not more so, because of that height advantage.
I totally agree with you..
+ for me his first serv is like a top 6 and second like a top 12