Thoroughly enjoyed our stay at Lucia's place during our recent trip to Sevilla. Lucia welcomed us in-person and gave us a detailed introduction to the neighborhood and other points of interest in the city. She was extremely flexible, especially as we had an unexpected late arrival due from a morning flight delay.
The placed is located on an extremely quiet street, but is really in the center of Sevilla's old town. Sevilla Cathedral and the Alcazar are literally around the corner, and there are plenty of reputable and affordable restaurants a short walk away. We were never too far from the place, making trips back for afternoon siestas easy to incorporate into our itinerary :)
I give my highest recommendation for Lucia's place for folks traveling to Sevilla!