I don't even know where to start - Vinatge Apartments (actually 2 studios sharing a common entrance hall) were sparkling clean, stylishly furnished, with all amenities one can think of and in the very very heart of Madrid. The host warned us in advance that the apartment is located on a pedestrian street, which is busy day and night, but with the good window isolation and the air conditioning we slept as babies :D
I recommend it to anyone visiting Madrid, and Begona was the most helpful host!