I recommend this flat, the location is awesome. Not only because of the proximity to the subway and to Barcelona Sants Station, but also because the neighbourhood has several restaurants, grocery stores, mini markets, bars, etc. Silvia was also a nice host for us and gave all the necessary support. In short, I recommend.

Short remarks for your decision:
- 3rd floor, no elevators
- additional fees for special days/hours of check in/out (and they are clearly described in the house rules, just check before)