Karin's place is very nice, close to Columbia and just 3 blocks from the Subway.

The only downside to the room is that it is on the 2nd floor, so brace yourself for climbing some stairs - hard if you are carrying heavy bags.

Also, the room has a port light, but no windows so there is no much ventilation. It was a non-issue for me, but things can heat up, specially in the summer.