This is a very warming place, comfortable, clean and centric!
The place is VERY well located, you have the 2 main Madrid streets within footsteps (Calle Mayor, and Gran Via) with Plenty of places to visit, like the Palacio Real.
The apartment is very quiet and sparkling clean.
Also, the building has a food court where you can find many options to eat.
So everything is centric, the Metro, the main streets, food court, groceries store, and it is Quiet!
Definitely a well recommended apartment to stay!