Carmen's place was very clean. The room was spacious and there were two bathrooms which was very convenient. There was also an elevator which made it easy for us to get up to the floor it was on. It's close to Atocha Station, making it very convenient for us to get around as we explored the city. She was very nice and happily greeted us when we came in. She also has 2 cats who are very nice as well. I would definitely recommend staying here if you need to be in a central location in Madrid. My only gripe was that there were two separate beds (which we were aware of when we booked it), that were a little smaller than I am used to.