The apartment is small but nice, comfortable and clean. It is perfect for a stay in Madrid as the location is very central.
The only negative of our stay was in our communication with the host. We were constantly receiving messages from her which became quite annoying. Air condition needed to be checked during our second day which we had no problem with but we were told the incorrect time. I then received a message at midnight the night before we left asking when we would check out the following day to which we replied between 10:30 and 11am (check out time). The next morning we had a knock on our door at 10:15 wondering when we were leaving as there were other tourists arriving. Overall, I did really like the apartment and location but would be hesitant to stay here again if returning to Madrid as I found all the messages (23 altogether) quite annoying!