I had a great stay at Mrs. Ruby's place for 6 nights. While advertised as just private room, this provides basically an 'entire place' experience as the only thing that you share with the owner is the front door ---after that it's straight upstairs to your own domain. The room was much bigger than I expected, I would describe it as 'huge' --- clean, big kingsize bed, big living area. The weather outside was incredibly hot --- about the worse I have ever felt in my life and I have spent a lot of time in DC, but the room was nice and cool -- shares central AC with the owner downstairs, and I kept the ceiling fan going as well. The bathroom is nice and bright and functional --- outside the room but still private to you. Plenty of street parking out front if you have a car.
I never crossed paths with Mrs. Ruby, but she answered the initial reservation inquiries and all other inquires within minutes, and sent me welcome messages, etc. I would stay here again in a heartbeat.