Well, this is certainly a room in the heart of Madrid! I was able to walk to to Puerta de Sol (2 mins), the Prado (15 mins) and Sofia Reina (20 mins) museums, the Royal Palace (15 mins), and the San Gines chocolateria (7 mins). All very conveniently accessible from this place. There is a metro stop just 1 min away, lots of cafes, restaurants around as well as the El Corte Ingles mall, Starbucks etc.
Although the room is so central it is surprisingly also very quiet. There is plenty of cupboard space too.
Would highly recommend this place!