This place saved the day! We ran out of the place we'd previously booked and spent hours trying to find something else in Madrid. In the end we were actually grateful everything worked out the way it did because everything about the stay at Hostal Castilla II was great. Check-in/out is a seamless process, the room was very clean, private and secure. We had one comfy double bed and a single bed (not comfy) which was handy for keeping our things on, we also had a table with a mini-tea station and our own private bathroom. Each room is accessed with a key card and also equipped with a safe, so we never felt concerned about leaving our valuables there. The WIFI connection was strong and the reception downstairs was manned pretty much all day. The location was also PERFECT, being just moments away from Sol, but on a nice quiet street with a great café on it (Arabay). Overall we were really really happy we found this place.