We stayed one week in this apartment, our experience there could be summarized in one word: PERFECT.
The apartment is clean and spacious, the location is great: we were able to access easily to the main distractions that Barcelona offers.
We enjoyed our stay, even if we couldn't meet directly our hosts, they were easy to reach by phone. Javier was calling us to check if we needed anything, to advise us ... Overall he was doing his best to make us enjoy and feel comfortable.
We highly recommend this place and will not hesitate to come back.