This was a great place to stay for us. We were a couple and a single friend and the flat was a good size, with nice facilities. We really came to see the three main art galleries in Madrid (Prado, Reina Sofia and the Thyssen) and they were all within ten/fifteen minutes walk of the flat. Arriving at the flat from the airport was easy, and Javi was there to greet us exactly when he said he would be. The train station is also only a ten minute walk away, making it great for excursions out of the city. The numerous nice little shops, bars and restaurants nearby, which were incredibly authentic and not very expensive were great. There's also a bakery on the corner for morning pastries and a supermarket two minutes away. Our top tip, though, is the Retiro Park, which is about 15/20 minutes walk away and is wonderful for a calming stroll after the museums and hubbub of the city. Enjoy!