Very nice place to stay in Madrid. Location is good and in walking distance from central city and Puerta del Sol. Pretty easy about 30min travel from the airport by metro with one line change on the way. The communication was very quick and easy with Mun staff, and feels like they are there to assist you immediately if any trouble arise.
The apartments is extremely clean and in good condition, good shower, nice white hotel like towels, shower gel/shampoo and bed linen, good air con, basic things to cook with, laundry machine and even small tube of laundry liquid to use. So everything was there, nothing missing and nothing too much! Roof top terrace is nice place to enjoy breakfast. The location is on crowded street with many clothing shops and you'll hear the life on the street especially on weekend nights, but it didn't bother us. We would stay here again when visiting Madrid.