This is a lovely apartment in a great location just a few steps from the Puerta del Sol in the touristic center of Madrid. Everything is within walking distance. The Royal Palace is about 10 minutes away, the Prado 15 minutes, Retiro Park 20 minutes. The apartment is on the sixth floor, so even though the street is crowded and noisy at all hours, inside the apartment it's fairly quiet.
Perhaps the best aspect of this apartment is the private rooftop terrace, with a lovely view over the rooftops of Madrid. It was a wonderful place to enjoy breakfast on a spring morning.
The rest of the apartment is as advertised. The living space is small, and since it's a renovated attic space, there are sloped ceilings so watch your head. The kitchen is well-equipped, including a Nespresso-style coffee maker.
Our host Angel was incredibly helpful when we checked in. He spent about 30 minutes with us, showing us the apartment and also providing information regarding tourist activities in Madrid. His recommendations for places to eat were great.