This is a great place to stay. It is ideally situated and close to good transport links as well as lots of great eateries. Just 200 metres down the road is a Lidl which was ideal for our breakfast croissants and freshly baked bread. Also the Reina Sofia art are literally just over the road and there's free entry after 7pm!
The apartment is spotlessly clean, quiet and has everything you need to spend a few days in Madrid.
Highly recommended.