My family and I loved staying at Gilbert's townhouse -- our family of three had plenty of room to relax and spread out. The beds were incredibly comfortable, and there's tons of space in each bedroom for clothing storage during a stay. We made breakfast each morning and appreciated the size of the kitchen, and the full fridge and dishwasher.
The surrounding Georgetown neighborhood is wonderful. Definitely worth exploring for a day in between taking in the usual DC sites. We loved the M Street shops, as well as nearby restaurants such as Chaia Tacos, Grace Street Coffee, Guerrilla Bake Shop, Georgetown Cupcake (prepare for a line!), Il Canale, and Thunder Burger. We loved the waterfront park, as well -- great running and cycling trails!