A quiet apartment that's great for exploring the city! Our group of 4 adults (one couple plus two other friends) had plenty of space in the 3 bedrooms and 2 bathrooms. We appreciated the terrace and views of Tibidabo, the coffee pot and stocked kitchen, and the A/C units. (Note that one unit is in the main bedroom and the other is in the living room. If you're planning to use the other bedrooms in warmer weather, the people sleeping there might need to leave their doors open to stay cool enough.) The showers had plenty of hot water and the apartment was impeccably clean.
The apartment is a 5-10 minute walk to the local metro or bus stop. If you're arriving with luggage, save yourself a lot of hassle and order a taxi. The ride cost us about $30 US and it was worth every penny not to haul luggage across 150 steps (which is what a trip to/from the Metro station entails). There's a very easy to use MyTaxi app which works like Uber for the city's taxi service.
Anna was an outstanding hostess, providing us with clear information and responding to our needs. We were able to deposit our luggage a bit earlier than our check-in time, and she was flexible with our departure time as well.
Would happily stay here again.