I truly recommend this apartment to whoever travels to Madrid. It is located in a very quite neighbour a few meters from one of the main street of the city, near the metro and bus stations and there are many supermarkets and little restaurants in the nearby.
The apartment was clean, we had everything we needed for our stay.
The hosts are very kind and helpful, the communication was excellent and the check-in and check-out procedure was easy and very convenient for us!
Overall, it was a good experience!