Don't change the hotel/airport shuttle at the last second. While waiting for the 10:00am shuttle to the airport on Sunday I was told by the hotel that there was no 10:00am shuttle and the next one would not be until 4:00pm. The website clearly says (and this has been the schedule for the last 2-3 years):
A bus is also available from the Westin North Shore hotel back to O'Hare airport at these times:
Sunday Oct 20th, 6:00am; 10:00am and 4:00pm
I could not find Mike to ask why this had been changed. So I ended paying $40 for a taxi. Of course the hotel could have been wrong, but I was there until 10:15am and there was no shuttle.
Any explanation for this Mike?