Of course, most of the other reviews mention the atmosphere or ambiance, and the Red Fox Inn certainly delivers on that. A beautiful, rustic country inn ambiance, with beamed ceilings and working fireplace, etc, create a cozy but elegant feel.
On our visit, the food was largely very good, but a couple of items were better than others. They were only serving their Valentine's (served the entire week, apparently) prix fixe menu, so options were limited, but we were, nonetheless happy with the food. Meats were of high quality and prepared to order, but lacked the "sizzle" that would have resulted in an excellent rating in the food category. Sides and appetizers were delicious and desserts were very good - the cherry crepes were top-notch. Servings were very generous, and being accustomed to DC prices, this meal seemed very reasonably-priced.
Service was very friendly, but a bit slow. Not enough to really complain a lot about it, but just enough to notice. There were a couple of noticeable delays between courses, so I think the delay was likely in the kitchen, rather than with our server. Our server was so friendly and nice, I hate to say anything at all about it, and I've already said more about it than the subject deserves, so I'll stop now.