Eri made this trip the easiest we've ever done, anywhere. On the first day she went out of her way and actually came to meet us at the AirBnB we were staying at. She knows the best places to eat (why else are you coming to Japan?) and not expensive restaurants, either. We traveled by train, bus, subway and even an aerial tram. Of course, there was also a lot of walking. Eri is very knowledgeable about all aspects of Hokkaido. My only advice to Eri is to slow down, sometimes, and let your guests enjoy the scenery and the sounds of Hokkaido.
Craig, thank you for wonderful comment and useful advice. I really enjoyed traveling with both of you. I will take your advice into my next tour. Thanks again.