Great two bed apartment on the 4th floor in a quiet lane close to the old town in Madrid. Building has a lift so you don't have to carry your suitcases up the stairs. Living room has a double pullout bed also. Location fantastic for walking and close to two metro lines. It's a short walk to Grand Via and lots to see, eat and drink within 10 minutes from the apartment.
Santiago was a great host getting in contact before we travelled and met us with lots of local info when we arrived. The apartment was very clean and had all necessary amenities including wifi and a hairdryer (I traveller with teenaged kids!). Remember you are staying in the city so it's not silent at night. But for such a great location it was remarkably tranquil.
And we loved Madrid. Food great and cheaper than other European cities and when the sun shines it's wonderful for a break.