We use Articulate products to build our courses as we want to get away from the slide based courses. One of the features in Rise 360 allows us to add a Storyline block where we need greater interaction for the user and the concept being presented.
Nothing is more frustrating than finding out after days of building a course that the mobile app users can't actually access the Storyline interactive feature. The majority of our staff is mobile, so not having the ability to access a crucial part of the course content via the mobile app is frustrating.