I really enjoyed the time at Juan's place. I had a difficult time to find the place with my car, but Juan showed up and guided me. Juan was very welcoming and told me must-sees in Seville. It helped me a lot.
The apartment was beautifully prepared in clean condition. One thing that I was a bit uncomfortable was sleeping on the loft. It was a bit cold at night. Other than that, everything was satisfactory.
Location was great. Main tourist spots were in walking distance. I would definitely stay at Juan&Maria's if I visit Seville again.