We stayed at Alex's apartment for about a week, and were extremely happy. Barcelona is a beautiful city, and Alex's apartment is conveniently located in a quiet area, very close to Park Güell, and with quick and frequent connections to the main tourist attractions in the center. Alex welcomed us to his place when we arrived, and gave us a lot of information about what to visit in Barcelona, where to eat out, where to get drinks, etc. I highly recommend Alex, and the flat, to anyone who visits Barcelona!