My 6 friends and I stayed at romans place for a few nights while my friend ran the Madrid marathon. Roman was very kind, leaving us food for the mornings, and gave us many suggestions for food/drink. Even though there was a metro station that was very close, the walk into downtown Madrid was doable. We were all 7 comfortable sleeping in the room, which I was worried about but turned out to not be an issue at all.
Would recommend.