Sama's place is great in that the location is awesome and convenient across from the Waterfront metro station and a Safeway, the views are outstanding, and the building is well-appointed and beautiful. The Wharf district is a short walk away, and we also used the Bikeshare stand outside of the unit many times. I enjoyed that it is a lived-in space with personal details and mementos throughout (books, accolades, etc). I'd have loved to have picked her brain on a few topics, but that's not what this is about. The kitchen space is adequately furnished if you want to cook. Sama's communication was prompt, friendly, and helpful.
I've stayed in several amazing places in our travels that have earned a 5 star rating, where the host went over the top in ensuring that you are made comfortable and everything is well-stocked and prepared in advance. In that light, I'm going to go with 4 stars on this one, as there were a few minor housekeeping/prep items that weren't addressed either by the housekeeper or Sama prior to our arrival.
All in all, I would not hesitate to stay at Sama's unit again and recommend that you consider it for your stay in DC!