We are also Asian and we do enjoy authentic Chinese food, often getting recommendations from our friends and relatives at just about every Chinatown in the U.S. that we travel to. Nine Dragons certainly won't rate among the best, but they are pretty good and rank among the most frequented WDW restaurants by us. We've tried most of their dishes and I will say that some are pretty good, while some others are not so good. Are you going to make die hard fans of egg foo young or shimp and lobster sauce enjoy a mo po tofu, steamed fish, or pork loin in XO sauce? Probably not, so I usually don't recommend Chinese dishes. So if you like some of the more authentic fare, you will probably enjoy Nine Dragons more.
EDIT: Service is hit or miss sometimes. I hate to stereotype but since I am asian I get a free pass... when things are hectic busy, many times their abrupt responses or actions may appear to be rude, but it's sort of a culture thing.