It's been years since we've been to Nine Dragons, so they may have improved since then, but...
It was unquestionably the worst Chinese food we've ever had. Everything was cold, greasy and soggy. The whole idea of going back turns my stomach...and I'll cheerfully eat nearly anything.
Our experience at the San Angel Inn last October was interesting. Everyone who ordered off the "regular" menu was terribly disappointed in their meal--all the criticisms you read here about it being over-americanized, bland, sub-taco bell-quality applied. But everyone who tried one of the "chef's selections" (or whatever they call the different, not-on-the-menu choices) found their meal excellent. I had something with pomegranite seeds in the sauce that was sooooo good!