Bibi's place is a terrific value. We were a bit skeptical about having our first Airbnb experience in Spain being at an apartment with no reviews as we knew we would be tired from travel and didn't want the hassle of a cancellation / phony posting . However, the apartment was clean, well furnished and at an insanely good location. Its just steps away from Plaza Nueva and a few minutes from the Cathedral, and the Alcázar of Seville. It was everything we could have wanted.
Honestly I'm not sure you could be at a better location unless you were in an apartment overlooking the Cathedral itself (which you can see from the roof). We contacted Bibi upon arrival and dropped into a restaurant just a few doors down, El Quinque, for a glass of wine while we waited.
The apartment is perfect size for 2-3 guests who want a good value while still being right in the middle everything Seville has to offer.