GReminders is better than all other scheduling tools - period.
Things I love about GReminders: calendar updates (and I mean any calendar updates) occur simultaneously across all synced calendars; no more staff time spent to confirm, cancel, and rebook appointments - they can focus on true client servicing; oh, yeah, it's compliant too!
Quite simply, set and forget your calendar booking, confirming, and rescheduling in a compliant way!
Thanks GReminders!