The apartment is brilliantly located but do be prepared if you're not used to city life that it can be very noisy at night.. despite being on the 5th floor we did struggle with the street noise. Really handy to be so close to bus and metro stops - especially if you don't know Barcelona. Most places (like the beach or Park Guell) were walkable within 30-40 mins too.
Accommodation was really clean and Milica's airport service was great for us as a group of 6 and reasonably priced. We were 2 adult friends and 4 teenagers travelling together and the apartment space worked really well for us as we had enough private space but could all sit together when we wanted to. Would definitely recommend this place even if it was a bit of a stretch for our budget!