An amazing place in a great location!
My wife and I, and our two sons, middle school and elementary, stayed for 4 nights and could not have been happier with the place. Very comfortable and felt much more like home than a hotel. Everything was great quality, and the rooftop terrace was so nice!
The Metro has a couple of line options each about a ten minute walk, and Teeter or Whole Foods were within a five minute walk. Just past Teeters is a gorgeous waterfront another block and a half down. We were able to see everything we wanted, National Mall, museums, Arlington, White House, Capitol, etc. without burning out the kids legs too bad.
If/when we decide to come back to DC, this will be our number one option.