Me and mu wife really enjoyed staying in Ruben's house. The room was very spacious and clean. The bathroom was the best one I have ever seen. Air conditioning was good and also the internet. Very big TV with all the channels you could ask for. We appreciated that we had the upper floor to ourselves and a lot of privacy.
We especially enjoyed playing with his two cats.
We met Ruben briefly and he was very nice.
The only downside could be the fact that it takes approximately 45 minutes to reach the center of DC, but we were aware of this and the extra time did not bother us.
We totally recommend staying at Ruben's.