Juan hosted my parents for half a week (the trip to Seville was a surprise gift) and they came home marvelled at his warm welcome. He phoned me a week prior to their arrival just to recommended flamenco shows and tours around the city. Juan also accompanied them to breakfast and tapas, his apartment is renewed, cosy and in the city centre. Plus, he is incredibly knowledgeable and very interested in culture, which makes him a perfect local guide.
I strongly recommend staying with him, he is a truly wonderful host!