Juan's apartment is a great place for 1 or 2 people to explore Madrid from (3 or 4 people if you like being snug). The apartment is cozy, has a comfortable bed and couch, and nice kitchen (basically-equipped) and bathroom. And the location is great! –right in central Madrid, close to transit to and from the airport, close to museums and other sites and things to explore, as well as right in the middle of a great neighborhood with good shops and restaurants. You do have to be ok with stairs though as there are a lot of them to get up to his place. We communicated by message with Juan and he was always very friendly and responsive. We were a group of 3 in the apartment for 5 nights and we had a great experience there.