Joan apartment is pretty convenient, one room for luggage, one master bedroom double bed, one sofa bed on the living room, washing machine, no A/C and I would say enough for a family of 4. It is located on the first floor in an old building like many buildings in Barcelona but it is ok and the elevator is operational. There is a food store in the corner and a good coffee shop down in the building with delicious bread varieties and desserts for breakfast. Sagrada familia is about 10 min walking and you can find many cafes and restaurant to get cañas and tapas all around, also the Sant Pau metro station is located in less than a block of the building. Joan was a pretty diligent and helpful host, I highly recommend his place.