The ability to create courses with multiple levels of difficulty. I can use one course for students in elementary school or high school. I also love that it is user friendly, but still allows me to customize my own experience! There are some features of this program that could be improved if they were more customizable. For example, when creating quizzes there aren't many ways to change how questions appear (or even what options you have). It's easy enough for someone who knows nothing about computers to figure out how to navigate through the system, though. This software has helped us reach our goal of providing quality education at all ages.