We enjoyed our stay at Eno's place! The location was very convenient--a couple blocks from the metro and no more than a few metro stops from many of DC's best attractions. Access to a full kitchen made us comfortable (and saved some money). The AC worked wonderfully (very important during the hot DC summer). Two separate bedrooms were a commodity in this price range. Lockbox check-in was perfect for us and worked perfectly.
That said, there are a few things that could be done to make the stay more comfortable. The bed in the smaller bedroom is particularly uncomfortable. While I wasn't expecting hotel luxury, it was disappointing to have such an uncomfortable mattress for a week. The bathroom door is sliding, and does not properly latch/lock. While this allowed for some funny pranking, you wouldn't exactly say it's a plus. Also--an easy fix--there was only a partial roll of toilet paper for 4 people to share for a week. We bought more at the nearby CVS, but plenty should have been there at the start of our stay.
We would recommend this BnB. It is a good value in a convenient location.