The apartment looks exactly as presented in pictures, it’s very clean and I’d say pretty big for an old building (the bedrooms have closets, the bathroom has an ok shower), everything works perfect inside. It’s very close to metro station (4-5 min walking), to a nice bakery&coffee shop (3-4 min) and to Carrer de Blai, a pedestrian street with lots of tapas bars (4-5 min).
About the noise I read in other comments: it is the normal rumor you have to deal with when you’re living in a central part of a big city.
I had an easy communication with Pilar, and I highly recommend this place.