Carlos was great, and a pleasure to meet and talk to. The apartment was small, but totally fine for the 2 of us, although the toilet (located, oddly, immediately off of the living room!) was in a tiny room, and would be difficult to access for larger people!) His terrace is lovely, and a great place to have a glass of wine after a day spent walking around. .... And, speaking of walking, Carlos' flat is in a SUPERB neighbourhood - very low key, very real... we LOVED it, and we loved the cafes & bars around it. Also great to be so close to the major galleries and Parque de el Retiro. Carlos, gracias por todo! Hasta la proxima vez (did we say that properly??!)