Upgraded to version 1.3 - plug-in seems to be running fine other than these 2 issues.
1. My settings on the settings page were erased after upgrading. I didn't exactly have them written down unfortunately, but I'll manage.
2. My Calendar is not allowing the scheduling of an appointment time for anything other than right on each hour. Before the upgrade I was able to control this and let the client choose a time within the hour.