Johnny is reliable, friendly and very well organized, that makes him a very professional host who will welcome you to his place with a smile, a city map and suggestions for you to start hitting the city.
Johnny's place is great: it is spotless clean and extremely well organized. The bed is very comfortable and the room is private and very quiet. On top of that the apartment is very central and you can reach Madrid's main rail station (15 minutes) and all major attractions, bars, and musea on foot. If you don't like walking the metro is also very closeby. I definitely recommend Johnny's place for a great stay in Madrid.