We stayed the last five nights of our around-the-world-trip in Bárbaras appartment. We loved it! You can't find a location that is more central. Nevertheless it was quiet at night and we slept well.
There are plenty of restaurants in walking distance and the metro is just around the corner.
Barbara welcomed us very cordially. She is a very responsibly host and did everything so that we could enjoy BA.
We can really recommend the place to anyone who is looking for a centrally located room in the city.