Mariem's flat is brilliantly situated in vibrant Triana, a few minutes' walk from all the major attractions of the historic city, but in a (mostly) very quiet street (our visit coincided with the final of the Copa del Rey, so Sevilla was full of football fans and everywhere was noisy for 24 hours!). The building itself is layered with history and the modern conversion into flats has been done with care and sympathy. We were cool and comfortable in the spacious, stylish apartment on the second floor, with access to a roof terrace that would have been a good place to get very hot, very quickly!
We were met at the door and given an introduction to the flat and Sevilla by Mariem's husband, Manuel, who was enthusiastic and charming. Thereafter, we had no reason to ask for further help or information beyond the arrangements for our departure 4 days later, including a reasonably-priced option for depositing luggage (2 minutes away) after checking out of the flat.
All highly satisfactory and recommendable! Muchas gracias.