Location is right in the heart of Puerta del Sol with lots of tourists. Very close to supermarkets and the San Miguel Mercado is just beside the apartment. Be aware that about 11pm everyday, the workers at the San Miguel mercado start clearing and cleaning their shops thus creating some noise and the same clanging and cluttering happens again at 5am. If you are a light sleeper, you will be awakened.
Apart from that, he has a beautifully decorated apartment. Unfortunately for us, we arrived when the lobby was going through some reno which created dust.
The bathrooms had a clogged drainage smell.
The apartment is located very close to the Sol metro and it is easy to walk to all the highlights of the place.