This was my second stay at Grace's. The apartment is clean, easily accessible by code locks rather than keys. There are guidebooks and maps if you need them. And space heaters if the central heating is not enough -- last week was really cold in DC. No TV, but we didn't miss it.
The supermarket and big drugstore are just around the corner, on Columbia Rd. There are also restaurants. At the Columbia Heights metro station, there are lots of shops and the Woodley Park station is not far from the apartment, either.