We got a one bedroom suite on 8th floor, the room is clean, quiet and comfortable, we had a good night sleep. The breakfast is above average compared to that offered by other residence inns I have been to. I like the view from the cafeteria window, it rained in the morning and left some cherry blossom on the ground. Lot of small restaurants nearby, Safeway and Metro is within a short walk. I like the area in general.
The only negative side is the traffic in the afternoon, we happened to arrive during the rush hour, it took almost half an hour to drive that 1 mile on Wisconsin Avenue.
Also note, it is a little crowded if you plan to use the sofa sleeper in the living room. There is no direct train to DC from the nearby metro station, you need to make a transfer. so for first time visitors, I will stay closer. But I will definitely stay here again if we visit DC next time.