The ease of creating courses, the ability to share them with other users/groups, the ability to see who has completed your course (or not), the ability to have multiple sections in one course, the ability to have quizzes and tests in your courses.
Nothing, it's great! We love how easy it is to create courses that are specific to our needs and then share them with others. It also makes it very easy to track completion rates and give credit where credit is due or not. In addition, we've found that many of our employees have been able to learn new skills through using this platform.