We spent two nights in the apartment and we were 5 persons. It was a little bite small but really good for what we want to do (visit and enjoy Washington as much as we can). Everything was clean. You can find everything you need in the apartment and if you need anything Kelly will always respond to your text to help you. That was really good, and really kind. The metro card was already on the apartment when we arrived.
The subway is at one or two block. Really easy to take from home. And close from everything! We walked to come back home many times from the center.