Greg was a great host, and I would recommend him to others. His apartment was clean, spacious and convenient. He put a lot of thought into hosting guests (e.g. well-equipped fridge, outlet converters, brochures and magazines). We went to a restaurant he recommended (To Mavro Provato) for dinner one night, and had a fantastic time. Greg even arranged a taxi for us on our day of departure. If you are coming to Athens, look no further, and stay at this apartment.