First off, the location is hard to beat. Short walk to the Metro/Eastern Market area, bike share kiosk on the corner, and only a medium walk from Congress. The apartment is a garden unit with a private entrance, and is tastefully furnished with modern furniture. The kitchen is more than adequate, with a cute little dishwasher under the sink and laundry in the mechanical room. Very comfy bed in the single bedroom, and we got no complaints from the kids on the pull out sofa bed. You do have to go through the bedroom to get to the single bathroom, so parental privacy is a bit compromised. The bathroom is small but well appointed, and there were a mound of towels available. The shower is tiny - but that's the only negative thing I can say about the whole experience.
The hosts are fabulous. Informative, kind, thoughtful - two Metro cards are included in your stay.