Mary and Marin are such lovely people and I would highly recommend a stay in their apartment. My ferry was late 2 hours and Mary waited up for my to arrive. There was wine and transitional Greek alcohol waiting for me with the room fully equipped with everything I needed. The apartment is right on the Main Street and is walking distance to everything including the ferry wharf, main bus station and the old fortress. If you're in Heraklion definitely stay here!