We stayed in Seville for three nights in June. Apartment is in very good location. It is on the main shopping street so you can find anything there. Plus, all sightseeing is in walking distance. Joaquin was very helpful in giving us instructions on how to get to the flat, as well as some recommendations of places to eat and see flamenco.
Joaquin was very kind to let us keep our luggage at the apartment after check out. Apartment is clean but needs some face lift-upgrade. Plus it would be good to have more kitchen tools and small utensils, like tea kettle and espresso maker for breakfast. There were no any bottle openers. We came from Malaga apartment rented also through Airnb. It had even orange juice maker which was very nice. But if you plan to eat out all the time then it is OK.
Overall, it is good apartment for this price.