We stayed three nights at Rafael's place and were absolutely happy about the experience. The appartment is exactly as shown by the pictures, and spotless clean. It is also very well located: 10 minute walk from the touristic center but in a lively and authentic neighboorhood. The place is really ideal for a couple, with a great rooftop terrace.
Rafael is a perfect host (not to mention a very nice person), with a great sense of service and great recommendations (restaurants, etc.). He really makes sure you have a great stay (even arranging a good parking deal), is always reachable by phone and very reactive whenever you have a question.
We really recommend his home sweet home in Sevilla.