My partner and I had a great stay at Victoria's place. It is super clean and very well located. We managed to walk every where in Barcelona (We actually walked to Park Güell, a bit ambitious though), the flat was very centrally located to practically most of the must-see things in Barcelona. It's super close to the bus stop that takes you to/from the airport; with no traffic about 15 minutes, with traffic Barcelona tourism suggests 35 minutes. The bathroom is quite spacious, especially in comparison to other places we've stayed in Europe.
Victoria has many pamplet's and maps of Barcelona to get your trip started - even has a Lonely Planet travel book on Barcelona.
Even though the living room is a common area, the flat is laid out in a way that your room and living room is privately yours. The room get's very little natural light unless you keep your door and the door in the living room open to let the natural light in. We felt comfortable to leave our door open during the night to let the AC breeze come in (and let her dog walk to our room for a morning belly rub). Her dog is super family and well behaved.
If you have large/heavy luggage, you don't need to worry about walking up many flights of stairs. Book your stay here, grab one of the Victoria's many pamphlets on Barcelona and start your day at Escriba near her flat with a croissant and hot chocolate - just do it!