We ate at 9 Dragons in late June and also had the Taste of China Sampler for lunch. All four of us (two 40 something adults , one 14 y/o boy and an 11 y/o girl) and we enjoyed everything very much. It was much nicer than a "buffet" since all of the sampler items were served hot and fresh by our server and you only ordered additional items you particularly enjoyed.
I've heard quite a few others here say that 9 Dragons wasn't very good and, to be honest, that's why we've never tried this restaurant on our many other trips. All four of us enjoy Chinese food and we found the food here to be good and a very pleasant surprise.
The Chinese restaurants we frequent locally are owned by people of Chinese descent so it must be authentically prepared. We found 9 Dragons to be on par with our favorite Chinese restaurants here--and that's not a bad thing. Yeah, it's probably less pricey at home--but, c'mon--you're in Disney--we all know we're paying far more for a meal than we do in our area. Although, lately anyway, I've noticed that it's not that much more expensive for the four of us to go to dinner at WDW than home.
Bottomline, we enjoyed it and will be back next summer. We will, however, continue to do the lunchtime Taste of China since it's (a) less expensive;
(b) has something for everyone; and
(c) it's tasty!