The apartment looks exactly as on the pictures and was very comfortable and lovely furnished. It was perfect for our group of six people, but there would also be space for eight people.
Moreover, the apartment is situated very central and you can reach the whole city by walking between 10 to 15 minutes.
On our first evening we had dinner in the restaurant, which is on the opposite of the apartment and which we can really recommend (a whole menu from 10€).
All in all we loved to stay in this wonderful apartment over the weekend and had a really good time in Madrid. Also, Alfredo and Rafa are very nice and friendly. Alfredo welcomed us in the apartment and showed us a city tour around Madrid, which we did (by foot) on the next day.
There are many more reasons why we can recommend to stay in this apartment, but too many to mention them all.
Thank you Alfredo and Rafa!