We use the FullCalendar as a calendar for our events. It has been very helpful, and we have seen no disadvantages in using it. We have had no problems with it, and everything has functioned as expected. It's free for open-source use, and is easy to use and customize for our needs. Our calendar is hosted online, and we are able to see all of our upcoming events on the home page. It's very useful for our needs. Our company has a lot of events, so we needed a way to keep track of them. We like that we can also have a Google Calendar integrated into the calendar, so we can have events in both.