Hernan was the host you can only wish for. Quick on responses, friendly, nice, polite,...He gave us usefull tips for dinners/lunches, places to see/visit etc. He also offered us to borrow us his bikes (one for girl, one for man), but we did not use it. Bikes were in great shape. Appartment is in an amazing place - in the heart of San Telmo. It has the character/soul that you can only wish for in Buenos Aires. His son helped us at check-out, he was also very friendly - helping us with lagguge and saying goodbye in the taxi.