We had a great stay at Tirso's place. It is well described and matches the photos. The Internet speed is very good. We loved the garden and had a few relaxed meals there. The flat is close to everything. You can reach the Cathedral under half an hour, everything is close from there. Nice bakery with savouries and homemade full meals under 5 minutes walk, also a nice tapas bar, and very close to the Avenida de Hercules with plenty of places to go.
The owners were very proactive with their contacts, making sure that everything was ok. They were able to let us check in a bit earlier, which was very nice and helpful of them.
I can recommend, and will definitely check the place when we come back to Sevilla. Muchas gracias, Tirso!