First let me say that I would definitely rent this apartment if I'm again in Madrid. It is beautifully decorated. One can easily walk to most of the major tourist attractions. I sent a couple of emails during the stay and they were each acknowledged almost immediately.
There was no issue with street noise even though the apartment is centrally located.
The air conditioning worked great.
The shower in the bedroom with the orange headboard does not work properly. This is highlighted in other reviews for the apartment. The rest of the bathroom works fine. One just needs to use a different bathroom to shower.
The kitchen does not have basic items like oil, vinegar, spices, plastic containers or Saran Wrap. Please note that the house was not advertise as having these amenities. They just would have been nice. We also rented a house in Barcelona that did not have these items. This could be the standard for Spain rentals.
All in all, it is a good rental in a very desirable part of the city.