I stayed with Carmen and Sorana for two months and I really loved it. They're really lovely and caring and it felt like home in Madrid. The room and flat are nice and they provide all the amenities. The location is great, near to the city center and to Madrid rio, which is a big beautiful park. There are also metro stations in 5 minutes walking and two supermarkets next door.
They have two pets which are such a great company! I'll miss it!