Can only say the best things about the apt and about Marta. Amazing location; cute and quite street - paralel to Calle Atocha and 5 minutes walk from the Reina Sofia Museum. The studio is ideal for solo travelers or couples, the place is cozy and has everything you may require during your stay. Marta is an amazing host, I was able to check in earlier since I was on a overnight flight and she met me in the building and showed me around and explained how everything worked. Was in touch during my stay to see if I requires anything and even helped me book a taxi back to the airport. Would absolutely recommend this place to anyone visiting Madrid.