Hey gang, put your party hats on. My wife is looking for an upscale restaurant (unfortunately no tacos) to host a party for her mom's 50th birthday. Probably about 40 to 50 people, with Hound-worthy food and a relaxed, but not too casual, atmosphere.
Wife was turned off by staff at 1789, and thought the place might be a little too formal for her liking. She's currently looking into Marcel's, Poste, and Butterfield 9. I'd heartily appreciate any party experiences at these restaurants, or any other suggestions in DC or NOVA.