During its first year we went to Mezza9 in the Arlington Hyatt a bunch of times for the good and interesting food, the ambience, and the downright obsequious service. For no particular reason, we haven't been back in a long time. We heard at some point that the original chef had left.
I am astonished to find that a Chowhound search turns up no mention of this place! Do any of you go there? How is it these days? Has it slipped into a culinary abyss, or is it so wonderful that you're all sworn to keep it a secret? :-)