Our stay in Seville was short but very pleasant! Jose and Julia were very easy to contact and Julia was really kind giving me some tips on what to do in he city.
The apartment is great! Just as described and the location is close to many touristic spots and nice bars and restaurants.
If you are going to Seville, I highly recommend Jose apartment. Just a little tip: be aware of the stairs to get to the apartment, if you have heavy bags be prepared for some exercise :)