The first and absolute best thing that I can say about this unit is that the location is great! My fiance and I found four really good restaurants, all within about a half mile: D City Smokehouse (literally across the street and an absolute must-try if you like barbecue or frozen daiquiris), BKK Cookhouse (Thai) , Glassey (Punjabi), and Shaw's Tavern (American). We also walked from Republic Cantina, a pretty good Mexican spot a little more than half a mile a way. This unit is also less than a half mile away from a station on the Green and Yellow lines which provided easy access to most of the hot spots in DC and most importantly Reagan National Airport.
For those of us who are taller, myself included, you're going to have to watch your head going in as the entrance is quite low. If you're a light sleeper, I heavily recommend ear plugs as the bedroom window is only a few feet from the street and cars pass by pretty frequently and there were loud motorcycles and sirens nearly every night of our stay. Lastly, if you're staying in the spring or summer, you might run into ants. We saw quite a few of them crawling on the walls, floor, and ceiling which is not too unsurprising considering the fact that the unit is underground.