We loved the apartment and location. During short week in Barcelona we used public transport only one day for one longer trip. Other days we just walked around the city, downtown, Sagrada F., to Arena mall etc. Neighborhood looks safe, good cafeterias, restaurants and markets are close, excellent market place is just few steps away, airport bus is in front of the building.
Apartment is refurbished attic, but well done, looks new (yes, you can find anomalies, but nothing bigger). Elevator brings you in front off the apartment, the entry using code is great (no need for mobile app or taking care for keys, just remember the code). Apartment is the only one on the flor and pretty quite. Here and then you only hear elevator whispering from a distance or nervous neighbors forgetting entry code (you hear echo from the hallway). Terrace is fine, facing courtyard, but we actually haven't had a time to fully check it. The bad was great, enough blankets, 2 aircon works well, bathroom well, etc.