Alex was very warmhearted and helpful. Before I arrived in Barcelona, Alex had given me an accurate description of how I could get his place. And when I arrived, he introduced what sceneries were better to visit, which gave me many clues for my trip.
In terms of the location, Alex's room located in a very quiet street but it was quite easy to take a train or underground. What's more, although the room is not like a "luxury room", which means if you intent to find a big bedroom this may not suit you, Alex always wanted to give his best to me, and the surroundings were very full of sense of life. It was almost like real life.