We stayed in Raul's apartment while seeking medical care for our cat. The apartment is spacious, clean, and has a walled terrace towards the back where you can have breakfast in the sun. The building doesn't look very appealing from the outside, but inside the apartment it' s very nice. It is well located (3 min from metro station) for visiting Madrid. Raul was very easy to communicate with and was flexible regarding checkout time, so that we could minimize the time our cat would have to spend in her carrier. Small warning: the bedroom is towards a very noisy street, so bring earplugs.