Clean, cozy and spacious apartment. All communication with Oscar was unproblematic and his cousin - who received us upon arrival - was very nice and helpful! As has been stated by other reviewers, the apartment is not very centrally located, but can easily be reached by bus, cab or walk (30-40 minutes if you walk slowly).
As we were in Sevilla during Semana Santa, the location was actually a big plus for us: No tourists, easily to get around by car, calm and relaxed atmosphere. Moreover, the local grocery store(s) and tapas/breakfast bars are really charismatic.
All in all, we would recommend the apartment.

Only watch-out: There is no internet in the apartment! So it pays off to look for some free WiFi places in advance :)