The apartment is very well located near Plaza Nueva and all the sights around it - La Giralda, Real Alcazar, etc. The supermarket is located about a block away.
Ignacio and his colleague Antonio were great in terms of response and follow up. The restaurant recommendations were spot on ( I tried four), within easy walking distance, and the map they provide with sights, restaurants, markets located is very helpful.
The apartment itself is perfect for 1-2 people and the small private outdoor terrace is a nice amenity. The apartment would be a bit small for more than two people.
Anyone renting the apartment should be aware that it is a 4th floor walk up - no elevator so be prepared to carry your luggage. The a/c is nice, especially in the heat of summer, though the bedroom doesn't get cooled as well as the living room kitchen.