@NYstressedmom – no, he never had a problem, but he has waited up to 30 minutes at White Plains for a bus to arrive. I do not know what sort of system they use at White Plains. Arriving half an hour early didn’t seem to help.
The drawback of the Short Line is that the trip can take six hours or it can take less than four hours. No way to know in advance. Also, with only one departure/day, if your student has a class that lets out at 3pm, he can end up ‘stuck’ on campus waiting 23 hours for the following day’s Short Line, whereas C2C offers an evening bus.