this appartment is well located to visit the main sites in Madrid and to go out at night. BUT, its location is also its problem: quite noisy at night during week-ends... We had a problem of bad smells during our stay coming from bathroom. Equipment is light (to cook) but ok.
The person to contact is working for a company so you will not be welcomed by owner and will not stay at his house...Not really the Airbnb spirit in fact.