The ease of using this software! It's so simple to set up appointments, send reminders, etc. I have been able to schedule all my clients in one place without having to manually input things into multiple different platforms. If you're looking for an easy way to manage your business, then look no further than Reminder Millie - it really does help me keep everything organized. Nothing at this point. This has been such a great tool that we don't need anything else right now. We were not aware how much time was wasted entering information into other systems, but once we started using Reminder Millie, our productivity went through the roof!