This apartment is very central in Seville -- you can walk to most of the major tourist attractions and to countless shops and restaurants. The apartment was cute and clean, and the bed was very comfortable. Pepa met us on site to check-in, and she was friendly and very thorough in explaining everything. There is a helpful printed guide available in the apartment with all the information you could possibly need for navigating Seville (they also provide a link to an online version, which is quite nice!).
The other reviewers didn't exaggerate: it is very loud in the apartment, even during the middle of the night. We ended up having to sleep with earplugs in. Also, the rooftop space is very shabby compared to how it is shown in the photos. Otherwise, it's a comfortable place to stay, with all the necessary amenities!