The apartment was described as "luxury". However, it had not been cleaned when I arrived at approx 3.30pm, and was not for several additional hours.
The host offered late checkout. But the keys were requested to be given back to the cleaner two hours before this.
A very loud groaning noise was made whenever I - or anyone in the surrounding apartments - used the water. This made one of the walls shake violently; I thought the mirror might fall off the wall! The noise kept me awake at night.
I messaged the host about this, but there was no response to my messages on this topic.
Undeniably, a great location close to Plaza Mayor. But don't expect a "luxury" stay.