This place was great! The most comfortable bed and pillows ever, plenty of towels and even nice touches like shower gel and hair products.
The location is awesome and so close to a metro that can take you anywhere. Several convenient grocery shops within two minutes walking.
Tips: if you are a light sleeper, you may benefit from earplugs in the next new weeks as there seems to be construction across the street- not a problem for a normal sleeper - even with windows open.
Mariano and Beth were friendly, very quick to answer questions and even give plenty of suggestions for food, sightseeing, etc.
The stairs as others have mentioned are no problem unless you have mobility issues.
Would recommend to anyone who wants a safe, comfortable place in the coolest neighborhood in Madrid!