Sergei was really helpful - and flexible with arrival time when our flight was delayed.
The apartment is in a great location to explore the city - in a quiet street but just a few minutes from Passieg de Gracia, and very easy to get to via a train from the airport. It is small but perfectly formed for a small family (we are a couple with a teenage daughter).
We particularly enjoyed two evenings at La Pepita, the bar restaurant at the end of the street. Fantastic and interesting food, and friendly staff.