Finally tried it this evening. Summary: upscale ambiance, impeccable service, very good (but not great) food. I'd go back but I wouldn't rush. I prefer RT's for food but Acadiana for atmosphere.
A little tricky to find with all the one-way streets in that area. Valet parking but I saw (and used) plenty of street parking in the area. Inside was very pleasant, upscale decor. Pleasantly quiet for a change. Large banquet room in the rear. Semi-open kitchen (you can see the cooks but not the cooking (a la DC Coast etc.)). Good sized bar. Three-quarters full when we left at 7:30. Most men dressed in business casual (slacks, dress shirt). A few in suits; a few in jeans.
I am not particularly knowledgeable in wine but the server seemed to be and we both enjoyed our choices (which are very different). Throughout the evening, the service was impeccable. Friendly; always there but not intrusive.
Menu has obvious Cajun/Creole (more the latter) influence but was not strictly either. She had oysters, I had the trio of deviled eggs, which was an intersting idea. For entrees, I had red snapper almondine with a sweet corn cake and greens. She had cajun-rubbed tuna, corn cake (not sweet), and spinach. The snapper was better than the tuna but the tuna side dishes were better.
We shared an order of beignets for dessert. First real touch of New Orleans. Just like Cafe du Monde. Included a pot de creme flavored with chickory coffee which was a nice touch. You got the flavor of Cafe du Monde's cafe au lait even if you didn't order chickory coffee.
A nice evening; a nice meal; a nice restaurant; but not a great one. I would recommend you try it with those reservations. If you just want cajun/creole food, go to RT's and a get better for less cost [but not nearly as good ambiance or service].
[In case you are wondering my point of reference, I have eaten in New Orleans and southern Lousiana many times and am knowledgeable in cajun and creole cuisine.]