When you have self-enrollment, and you send the link to users, there is no intuitive way to enter into the course. The enrollment button is a tiny button in the upper right hand corner that literally everyone misses. This greatly limits the potential when we are using the system because if our users can't find the button, then we will just move our content to a SharePoint.
Something that needs to be explained every time and is not intuitive is not useful. Especially something that has such an easy fix.