The location was great. Just outside downtown. I felt super safe walking there as a female traveling on her own. Super safe to and from the downtown center, Plaza de Espana, and also the main train station (Santa Justa) I liked that there were coffee shops and tapas restaurants that were not targeted to tourists in the area.
Rosario was a great host. Had space in her refrigerator for me, very clean apartment (with an amazing view of the city!) We watched tv together, tried to teach other English and Spanish, and I got to enjoy some of her cooking, which was a pleasant addition for one lunch.
And also found an mixed english/spanish speaking church right in the area http://www.fesevilla.com which made me super happy to be able to walk to it so quickly. Would definitely choose to stay there again when back in Seville.