I absolutely loved Estadio- the food, the atmosphere, the service...everything about it was top notch. The only thing that I don't love is the no-reservations policy, except for parties of 6 or more. I was forced to eat an early dinner and while that was probably preferable in terms of it being quieter, I probably didn't get the full experience. But I can't wait to go back.
Here's my review on my blog:
http://beenthereeatenthat-foodobsessed.blogspot.com/2010/10/estadio-que-bueno.html