Tomas welcomed us to the place and gave the place a once-over, making sure everything (e.g., internet, heat, washing machine, etc.) was working properly and we knew how to use things. He pointed us in the direction of the Cathedral and the Real Alcazar, which were literally just around the corner, and recommended restaurants, also just around the corner.
Needless to say, the apartment is extremely well located. It would be hard to get closer to key sites in Seville. We walked everywhere from the home base at Tomas' place, and couldn't have imagined a better stay.