All I have to say about this studio is LOCATION LOCATION LOCATION! The location was central so it was very easy to walk to all the tourist attractions (Royal Palace, Museo del Prado, Mayor Plaza, etc.). It was close by the Plaza de Santa Ana which had many good restaurants. There is also a hotel there so taxis were extremely easy to catch (even at 6AM). There is also a super market directly across the street.

We did not personally meet Helios we picked up the key from a hotel steps away from the airbnb. We had a slightly difficult time getting our key from Hotel Madrisol because the front desk woman had no idea what we were talking about. Finally, I think she figured it out and after that there were no problems! Helios was a great host and he answered all of our questions promptly and he had given us all of his contact information so we knew exactly how to contact him.

The studio itself was very clean and open. With studios I find that sometimes it can feel cramped but not here! I also loved the fact that he had a blow dryer in the bathroom (a luxury not all airbnbs provide).
My only warning about the studio is that there is a club directly in front of the room and if you are a light sleeper you may be hearing music/ people/ club lights in the middle of the night. However, none of my friends and I were really bothered by it and we slept through the noise! I would MOST definitely without a doubt be back at his studio my next visit to Madrid!!!