Really fantastic place. Surprisingly roomy, impeccably decorated, and whisper quiet when the windows are closed. Emilio was flexible, attentive and provided some good suggestions for eating/drinking out. Location is right in the center of the old part of the city: you're in tourist land but that's not a big problem in Madrid. Only caveat is that it's on the 5th floor (or Level 6 in American) with no elevator, which is not for everyone.
Highly recommended!