Juan was a wonderful communicator and provided some great suggestions for things to do/places to eat. While I never met him, he had a friend meet us promptly at our apartment who showed us around and made our stay easy.
His apartment is in a great location for walking to most of the landmarks in the area while also giving you the opportunity to explore some of the backstreets. I've got to say, we had an absolutely wonderful time in Sevilla and his apartment certainly had a lot to do with that!