William’s place is a lovely little room/bathroom combo in his apartment inside an elegant and extremely well-located building in Barrio de las Letras, a 5 minute walk from Reina Sofia museum, very close to Atocha train station and with a subway station on the same block, although we never used it because everything in the central neighbourhoods is walking distance. William was very quick to respond to messages and was welcoming of us in his home. Gracias William!