Location was great for me as it was a short walk from Atocha station (the main railway station in Madrid). It was also right next to a Metro station and right by the main historic centre of Madid, very cool area just over the road with interesting places to eat and drink.
Room was clean and bed comfortable with bathroom right next door which was convenient.
Host was friendly and helpful - gave me a coffee and cake on arrival and also kindly sketched out a lovely walking route through the centre of Madrid to take in all the main sights that evening.