We had a great experience in the apartment! We were welcomed by Antonio's friend which was very welcoming and gave use lots of information about Barcelona and the neighborhood. Antonio was very helpful and nice- he was flexible with the arrival and check out hours and he ordered a taxi for use when we left.
The apartment was located right in the center and very close to a metro station, and it was very clean and well equipped.
We would totally recommend Antonio's apartment for your next stay in Barcelona.