A glass of champagne- or a mimosa if you're into that kind of thing- is included in the brunch. The buffet is laid out in the industrial kitchen behind a panel. I felt like I was walking the wrong way but I was encouraged to persevere. There were oysters, shrimp, crab legs, all sorts of rolls, ginger carrots, cheese & crackers, bacon & potatoes. It was a lovely spread. There is also a dessert bar with cheesecake balls, a monster creme brulee (I've had better in Boston), and mini cupcakes.
The people watching was as good as you'd expect- all sorts of folks, all sorts of ages. The couple sitting next to us was well into their 80s and he would cup his ear with his right hand to try to catch all of her comments. There were blissed out kids around the dessert bar.
I recommend this brunch next time the Living Social Deal comes around- our waiter spotted us as Living Social-ers right away. After brunch we walked around and enjoyed the view. You can't see the Capital from the roof but you can see Lincoln, Washington, and the poor rowers on the Potomac.