We stayed here for a couple of weeks in September and really enjoyed the location and the apartment. Incredible views of the city and a stylish comfortable place. I really appreciated the soft beds, which are sometimes harder than expected in Europe.
Location was just around the corner from a couple of different metro stops and nearby one of the best tapas streets in Madrid. We also ate at several other nearby locations. You're also right at the Rastro street market on Sundays, which is something you definitely don't want to miss in Madrid.
During our stay we had a little trouble figuring out the clothes washer, but received instant help and feedback when we reached out. Great stay! Would recommend it to anyone looking to visit Madrid.