The apartment' location with respect to the metro station cannot be overstated. It is literally a few steps away, it couldn't have been more convenient if you are moving by metro.
The neighborhood is very quiet and residential. There are convenience stores very close and a supermarket 2 blocks away.
The apartment has everything you might need. We were 3 people with a Lot of luggage and the apartment handled it comfortably. The host was very kind and courteous to help us with our unusual amount of luggage. I particularly appreciated the NY photography decoration.
The apartment was very clean and comfortable. My wife appreciated the stock of Nespresso coffee cartridges provided by the host.
The host was very accommodating on our particular needs and gave us lots of help and advice during our stay. Communication was excellent.
There is no concierge or reception so the checkin had to be coordinated in anticipation with the host to synchronize the time to check in, as she will personally greet you on entry. Make sure you give them about an hour notice before your time of arrival.
The elevator is a bit tiny, as we later found out that most buildings in Madrid have, only 3 people fit at once.
The water heater can provide enough water for one person shower but the 2nd and 3rd will run out of hot water if they shower in sequence, so account for extra time for showering every morning to let the heater build up volume again, or endure a cold shower.
Overall a very enjoyable stay.