The ability to track vacation time for multiple people in one system makes it very easy! I dislike that there isn't an option with this program yet but would love having more of our employees use their own personal calendars instead if being able pull up all employee data into 1 place (even though we have other apps like Asana). We are using these types solutions so when someone has taken days off or needs help they can find out without calling them at home which also helps keep managers from needing 2 sets o notes since everyone's info will be pulled together right away!!