I had a lovely stay at Marcela's house. Only a few minutes away from Passeig de Gràcia, and right next to one of the best ice cream shops I have ever tried, the apartment is perfectly located and you can go everywhere you want in less than 30min in bus or subway. Marcela is a very nice and friendly person, who always answered my questions and was ready to help me whenever I need it, and was always available for a nice chat. I would go back anytime.