Paula was a gracious and lovely host and was very flexible with her time and help; we felt very welcome in Madrid. The flat is even better than the pictures suggest, comfy, clean and new with a rustic style. It is very well located within 10 minutes walk of Atocha Station and within 20 minutes walk of Sol, 15 minutes walk of Plaza Mayor. Neighbourhood was quiet at night. Paula's shop is located on the same street so if we had any problems we could just walk down there and see her. I had no problems whatsoever.
This was my first Airbnb and now I'm a fan of both this site and of Madrid!
Overall I would highly recommend Paula's flat and I would stay there again 100%.