Great location - close to the Plaza Mayor and close to Puerta del Sol (unfortunately the Puerta del Sol was under construction). We had short walks to Prado and a bit longer to the Palacio. Space is adequate and clean. Unfortunately, one of the three A/C units (one in the living room) was not working. That made sitting on the sofa / at the table a little less pleasant.
Check-in was easy and everything else worked.