We used Starr for our wedding in the Champaign area. The experience with Starr started out really poorly when the first bus we had scheduled for the day to take family from the ceremony to the reception was late without any communication to give us a heads up. This was really frustrating since we were trying to get pictures started as soon as possible.
The rest of the evening was just fine, with school buses arriving early and leaving as scheduled. We also appreciated their flexibility in the final week as plans changed leading up to the date.