I've been in Barcelona for one week with 2 friends of mine. The apartment is not very spacious and it is a bit dark (there aren't big windows and there isn't much natural light that lights the rooms) but it's good for 3 people. It has ceiling fans (one in each room) instead of air conditioning, but they kept the apartment quite cool. The most comfortable thing of the apartment is its location (2 minutes by walk from Parallel Metro Station and 3 minutes by walk from supermarket). With the metro you can reach every quartier of the center of Barcelona in a short time. Then, the host Ferran is really really nice: at the check-in he gave us a lot of information about the city (tapas restaurants, supermarkets, museums, things to visit, means of transportation...). He has been one of the best air bnb host that i have ever met. My friends and I absolutely recommend Ferran's apartment.