My wife and I are able to make updates and changes to our busy schedules and it automatically updates the other. This helps us avoid double booking, over scheduling, or to identify where we need to hire some help for an hour or two. Even better though, all of the sport calendars that can be added. Utah games and RSL games find their way on to my calendar and since my wife keeps only one of my testi and I have a good working relationship I rarely get pulled into things like shopping or hanging out with people when what I really want to do is watch a game. If you aren't sharing calendars and including the sports calendars then you are missing out