I'm trying to find a place to take a visiting Japanese friend who wants to eat Vietnamese food tonight. I hope to find a place with more ambience and refinement than the usual pho joint. I wish New York had its own version of San Francisco's "The Slanted Door". That would be perfect. We took this friend to Vong last time she was in town, and she loved it, but I want to try a different place this time. Any suggestions?