This was an excellent choice. Xavi's place is not only perfectly located (next to Arc de Triomf metro station and walkable distances to barrio gótico, sagrada familia, Barceloneta, etc.), but well equipped for long stays. He and Victoria are really friendly, always available to answer your questions or just for chatting. The building is a bit old and noisy, but if you pass most of the day outside (as me), that won't be a problem.