This turned out to be the perfect place for our visit to Seville. The location is excellent for exploring the city on foot, and is quite close to most of the things you're probably planning on checking out. It's an extremely charming old building, complete with a rooftop patio for relaxing in the sun. Note that you'll be able to hear whatever's happening on the street outside your room very clearly, but this actually wasn't a problem for us since it's incredibly calm and quiet at night, so we slept quite well.
Above all, Juan was an extremely friendly and helpful host -- he helped us arrange for transportation to and from the airport, and even gave us a great recommendation for a local hole-in-the-wall to hang out and drink at. Definitely recommend!