What a fantastic place to stay in Madrid. Very central, comfortable and spacious with a luxurious feel.
With the doors and shutters closed there is almost no outside noise.
The apartment had everything you need.
If you wish to sleep late in the mornings, bring earplugs as there is noise from the children upstairs running on the floor.
Also not much toilet paper provided so make sure you organise that fairly quickly on arrival.
I would stay again in a heartbeat - just an overall perfect place for a Madrid stay!