The ability to have access to all of my calendar items from one place. I love that I can view my calendar at any time of day or night without having to check multiple different places. Sometimes it takes a couple minutes for the events to show up in the event list but other than that there are no problems. I wish that you could sync your calendar with Google Calendar. It would be great to be able to see everything if we were out of town when it happens so we know what's going on. This helps us a lot since I work from home most days. It also makes it easy for meetings if I am not able to attend them because they do not allow me to change them.