One of the best AirBNB's my wife and I have stayed in. Maria's place is only a 10 minute walk or so from Atocha in the southern part of Madrid. We actually walked everywhere from her apartment, including to the Palace, the Prado, old town of Madrid etc. Plenty of decent bars and restaurants within a short walk.
The apartment itself is fantastic - newly renovated with fully funtional kitchen, spacious bathroom. There's a smart TV which we made use of with Netflix and some of our media transmitted over to it.
We really didn't want to leave Maria's place and it's one of the best value-for-money apartments we've had the pleasure of staying in. Keep up the great work, Maria!