I stayed at Evanna's apartment for quite some time and it was awesome! It has a fully equipped kitchen, a big bathroom and a spacious room to live. You can use the mesmerizing roof top of the building, too! The location is just perfect, busses are leaving right in front of the building, if you still decide to walk to the Columbia heights metro station it takes only 10 minutes and within 5 minutes on foot you are either in the buzzing heart of Adams Morgan or in the Smithonian Zoo and the Rock Creek park.
Furthermore Evanna is a perfect host. Whenever you have any questions, she answers right away and provides any help she can.
So all in all it is just perfect and I was glad I could stay at Evanna's apartment while I was working in DC!