We spent 2 nights at Pilar’s and Alberto’s place. Altogether it was a positive experience, the apartment has a relative central location and the garage place is a huge plus. The apartment has everything you need for a short city trip.
Some remarks however: you will have very loud neighbors and since there is no air conditioner you must keep the windows open so you will hear everything until 2-3 am (bring earplugs). If you arrive by car prepare for a maze in Sevilla until you arrive and and don’t even try to drive a bigger car in those streets, you won’t fit (max size e.g. a Ren. Clio).