Thanks Jose for the wonderful stay!
We arrived late evening and he welcomed us in the apartment, provided hints and recommendations about Madrid (tips that I did not find in internet), explained how to move around and offered us some basic food! He was always quick in responses, the apartment is literally above the metro station line 1, which connects in 15-20 minutes to Puerta del Sol which is the heart of the city. Moreover the area is well equipped, there is a delicious bakery downstairs. The room was sorted, we had many towels and the bathroom clean and equipped as well. The apartment is very quite and I felt very rested spending the weekend there! Again many thanks :)