The apartment is very modern and new, in a great location right beside Plaza Mayor. As it faces an internal courtyard it is always dark and quiet (but does lack natural light and you literally don't know what time it is).
Our biggest concern was the extremely firm and uncomfortable bed that meant we had a terrible sleep for our 4 night stay. We ended up sleeping on the pull out couch with a paper thin mattress you could feel the springs through instead, as our backs were so sore from the hard bed.
Our last quelm is the lack of personalisation or comfortable touches we have become accustomed to when using Airbnb throughout Europe and the world (welcome gifts, coffee machines, breakfast options and cooking necessities like oil, salt etc) which made it feel like a hotel and not a proper Airbnb - based on using the service in over 13 cities...