We stayed at Susana’s place for a month, using the apartment as a base to work online and to explore Seville from. Location wise, it is superb - right between Alameda de Hércules and Calle Feria, there were umpteen places to eat and drink, and very few tourists so it had a real local feel - although it only takes 10 minutes to reach the Mushroom and main shopping area from the apartment.
The apartment itself was spacious, beautifully decorated and spotlessly clean with a comfortable bed. Wifi signal was also great and we had every possible utensil /thing one could need during a month’s stay.
Some other reviews mention noise - the apartment is set at the front of the building on the ground floor and as a typical apartment building in Seville it is set around an internal courtyard, so you will hear your neighbours coming and going. This didn’t bother us, however, if you’re a light sleeper it might be a good idea to bring ear plugs.