I was one of those waving to the Express before the designated time to depart dock and had to drive around through Chicago for a business trip. I guess that's why they call it "Estimated Time of Departure". My mistake was not showing up at their designated time. Someone else was able to buy a ticket in place of me. What really torqued me off was not getting a refund. If they sold my ticket, why couldn't they refund my money? I would have thought they had changed their policies but maybe not.

I've taken both and they have they have they're pluses and minuses. I think the choice should be determined mostly by convenience of locations and timing of departures and arrivals.