The list of modules/lessons/assignments takes up A LOT of space because of useless white space and huge fonts. This way it's practically impossible to create a complex course, with lots of modules and lessons, because the navigation sidebar would be WAY longer than an average lesson page and just looking at it would be scaring.
I'd love to see some options to reduce fonts size and/or margins within stuff, especially in the Courses section, so that we could get a more compact and readable environment (just as in Membervault or Circle).
At this moment, this is basically the only reason preventing me to move all my courses inside Heartbeat and ditch other platforms...