Don't judge the book by its cover. This place is in Lavapies, a multicultural neighborhood. I love its working class atmosphere. Christian's place is closed to everything, from the museum Reina Sophia to small convenience stores run by immigrants, from metro stations to the magnificent train station Atocha. You walk and discover something new not written in tourist guides.
As Christian says in his page, this place is for one person. He provided me everything, from soap to tea, from maps to suggestions on how to get to downtown by foot, so I could explore the city. He is a warm and friendly host.