I've used this software now 4 years - it is easy enough that anyone who wants in just needs access with an email address! It's not as robustly designed (or well marketed) than other platforms such at Workflowy but they are both great tools when looking up information about time off requests etc., so no complaints here :) The ability of using dates/times without having them tied together into one calendar makes scheduling meetings much easier too since people don't need my approval everytime there might be conflicting interests across multiple calendars :).
I love that this software allows me to be in control of my own scheduling as well as keeping track of when events are occurring during our school year! It is easy to use overall but sometimes it doesn't always keep up with changes made by other people's schedules (e.g., if they change their lunch time). This has been very helpful allowing us all flexibility within our day while working together towards one goal - learning!!