We have travelled a lot as a family and stayed in many rentals, through Airbnb and other services and I can't remember one that we liked better. Bright, airy, clean and comfortable, Maria's flat is in a terrific location, just a few blocks from La Sagrada Familia and its metro stop, which meant most days began and ended with the sight of Gaudi's glorious basilica. Two great supermarkets and several bakeries were steps away. Beds are super-comfortable, two nice showers and one bath tub, washer/drier work great, as does a/c. and the aesthetic is clean and welcoming. We were traveling with our two daughters, 19 and 12, who were thrilled to get their own rooms for once, but flat would easily have accommodated our 21-year old son as well since two of the bedrooms are large enough to double-up. Lots of closet and drawer space. We had no problems at all with flat but Maria answered promptly to questions about day trips--she gave us a great route up Costa Brava--and taxi service--she arranged taxi from and to airport. There is a daycare in the building and with windows open, things could get a little loud in mornings and afternoons but closing windows helped and nights and weekends were super quiet so it worked out fine. Really a perfect place to stay; I cannot recommend it highly enough.