Mercedes is a great and kind host, she is very communicative and helpful, it was a pleasure to stay with her. Her place is amazing, modern but still has a homely feeling, and it's very close to Atocha while still quiet. The room is not big, but more than enough for a person and the view is exactly like on the pics. There are also small tapas bars and a supermarket nearby, so one can pop out even late in the evening. I would definitely stay there again and recommend her place to anyone!