The apartment is very very nice and has everything you could need. It is a place where you like to go back in the evening to rest after a day walking around in Madrid.
You can probably find cheaper locations, but I could bet none of them with a comparable value of quality+coziness+location. Metro station is less than one minute from the front door and you have to walk less than 5 minutes to reach Plaza de España.
Last but not least, communication, support and hospitality from Lisa simply perfect.
We would recommend this location to friends and relatives visiting Madrid.