I spend a week in Madrid for a language course. The accomodation is quite well located and the room quite comfortable. Belen and Avelino are very nice. The accomodation is calm in general, just the shower in the bathroom next to the room is noisy but that's all. The water of the shower had to be run a few minutes till the water turned warm, the host told me it's just due to a current change in the water supply system.
All in all I really enjoyed the stay and absolutely recommend this homestay! Muchas Gracias!