The multi-calender has many features, I like that it allows you to create events on different calendars at one time. Sometimes when using the multi-calender I have issues where it will not save my changes, so be aware of that if you are having trouble with this. I dislike that sometimes when I'm trying to do something in one calendar, I get transferred over to another calendar which means that I am missing out on work. This can happen in a number of different ways. If you need help creating an event or want to switch between calendars quickly use the multi calender. You will be able to see what your schedule looks like without being logged into each separate calendar. The most useful thing I like about this application is that it gives me access to my schedule from anywhere as long as I am online. Sometimes, when switching between different applications or using other tools simultaneously, things can get messy for me and make it hard to have an organized approach to work at times. However, everything seems to be working flawlessly and thus far there hasn't been any issues with getting into a productive mood. This app has simplified all of my scheduling needs!