Pros: excellent location, close to bars and restaurants. Everything you could want and need is within walking distance. We were only a few minutes walk from several major sights in Seville. Location is five stars. The apartment itself was fine. For two people, it's a great little space.
Cons: the reason I couldn't give five starts for the actual apartment is because there was a bad smell coming up through the shower drain and the sink in the bathroom. The smell was extremely unpleasant and at times the entire apartment smelled like sewer. I notified Carlos when it happened and he was extremely responsive, and tried to fix the smell, but unfortunately the smell lingered the entire stay and put a damper on our stay in the apartment.