I've stayed on 50+ Airbnbs and by far this is one of my favorite ones. Pelayo's place is simply amazing. Very nice, clean and thoughtfully decorated apartment (with unique paintings, and not just some IKEA prints).
There are four balconies with mind-blowing views. There are a few nice restaurants and cafes right below the apartment. Pelayo's apartment is also very close to all the major landmarks (like Real Alcázar de Sevilla, Plaza de España, Puerta de Jerez and more).
Communication, check-in and check-out were seamless.
If you come to Sevilla, you absolutely have to stay there. I am hoping to find more Airbnbs that are as good as Pelayo's.