Billy's Georgetown spot was one of my fav airbnbs. Location is the best as you're basically the closest you can be to central DC while also close to Georgetown's magic. The neighborhood has a historic feel, youre blocks from the Waterfront, cute canals and cafes like Baked & Wired, M Street shopping and gothic heaven Georgetown U.
Apartment itself is very comfortable, stylish, cute views out of all windows, clean, this will be my #1 choice for visiting DC!