Tandem space is lovely and clean. Located within the theatre district in Atocha and plenty of amenities around like shops etc. The apartment / studio was a 5 min walk from the main square and the food market - which is a must visit.
Apartment can be noisy at times due to the location. I'm a light sleeper and managed to get some good sleep in for the 4 days I was there. There was no iron or ironing board in the apartment but the hosts sent one over when asked from the local hotel that manages the property.
To be fair, for my needs, it was perfect.