Antonio's apartment is exactly as pictured! The location is great (and he was very helpful in guiding us in, when the streets were closed due to holiday festivities) -- you're in the middle of the historical center. The back wall of the Alcazar is quite literally just around the corner.
We were delayed due to flight issues, and Antonio was very understanding and helpful.
Rooftop patio is lovely, lots of sitting space. Would be amazing in Spring/Summer/Fall -- even in December, we were able to sit out in the sun for a bit!
Would definitely stay here again when I have the opportunity to return to Sevilla.