Elbio Mariano is the perfect host, caring and attentive. We also highly recommend booking airport transfers with him, regular BA taxis have no luggage space and it was such a relief to get off a long flight and have someone standing there with a sign. The flat is charming but do be aware there is a narrow spiral staircase to get to the sleeping areas. Travelling with a teenager, she thought this was the coolest thing, but it might not work so well with a toddler or a grandparent. The neighbourhood is shabby chic Bohemia and it's only ten minutes to walk to the centre of the city or the heart of San Telmo.