Sebastián was a great host who went out of his way to make sure that I had a pleasant stay. He was easy to get in contact with and gave really clear directions on getting to/from the airport.
Place is exactly as described - a nice sunny room with access to a little terrace. The bedroom is a decent size. Access to kitchen facilities and the clothes washer was a real bonus. As Sebastián put in his description, there is a staircase without an elevator, so keep this in mind if you have and walking/mobility concerns.
Would definitely stay there again.
Would recommend to others.