Silvia has a lovely quirky flat. It is 15 to 30 minute walk into the city centre, depending on where in the city you're aiming for.
Her apartment was very clean and full of character.
Unfortunately the bed wasn't very comfortable for me. The balcony doors don't keep the street noise out. And the curtains don't keep the daylight out if you're a light sleeper.
Silvia was a lovely host and I would recommend staying here, especially for a short trip to Sevilla.