We loved this apartment during our 2 months in Madrid. It was quiet because there are mostly residences around it. Yet, there were plenty of restaurants nearby, and in only 8 minutes, we could walk to 2 Metro (subway) stations to get to anywhere in Madrid. Plus it was a short 15 minute walk to the train station, the gateway to the rest of Spain.
The apartment was very spacious for us. Comfortable large bed. Shower/tub/bathroom was excellent, and there was a second smaller bathroom. A large table for setting up a laptop and work area. WiFi included. A dining room table for eating. Fully equipped kitchen, with a dishwasher! A clothes washing machine. There was a guest bedroom too, which we didn't use, and lots of cupboard/storage space for clothes, etc.
Marcelo answered questions very promptly and was very courteous. All-in-all, it was a pleasure. Thank you Marcelo.