The staff is very knowledgable and the food is fabulous. They can tell you which items contain gluten or can be modified, and they even made sure that I got a modified version of the "palate cleanser" brought out before the meal. On top of that, they had gluten free bread I could eat when the other members of my party were enjoying their bread, or that I could use with the charcuterie appetizer. And it wasn't some sad "supermarket" gluten free bread, either--it was clearly "homemade" bread.
Overall, I had a very good experience and would highly recommend The Grey Plume for anyone wanting fresh, local cuisine. It's pricey (I recommend budgeting about $50 per person) but worth every penny.