Paloma's flat is outstanding. It's spotlessly clean, contains all you could possibly need for cooking, washing up, and generally enjoying a home-like space, and is very close to the historic center of Seville. There's also a grocery store/dollar store sort of place and bakery right down the street, in case you do not wish to go farther afield.
I did not meet Paloma, as she was traveling, but her friend Pablo met me at the apartment, and he was extremely kind and helpful. My data and wifi connectivity went haywire on reaching Spain, so I was not able to communicate easily, but Pablo was patient and persistent in waiting for my friend and I to arrive.
Really beautiful home base from which to wander in Seville.