We thoroughly enjoyed our 4 nights stay in Mercedes' home. The Plaza is beautiful and the apartment has tons of character. Mercedes made us very welcome and we would definately stay here again next time in Barcelona. Since she rents out three rooms, the experience felt a little like staying in a small hostel rather than a family home, with a constant flow of other international travellers passing through. I would say Mercedes went above and beyond to ensure everyone had a good stay, providing a good spread every morning for breakfast and plying us with her excellent Sangria in the evenings!