I really liked that it was so simple for me as an admin user - all of my students had access through their own logins which made things very straight forward! The only thing i disliked about this system were some glitches when using our chat feature but these have been resolved now thankfully :) We are able to track attendance easily too via LTI's or learning task assignments where we can send them links within emails/instructions sent out by us internally- they then complete those tasks online themselves from there point onwards.
This has helped keep up student engagement levels during lessons time especially if you're having problems getting people into classrooms at times due to Covid restrictions. Also being able to see who hasn't completed any work recently helps identify areas needing more attention than others e.g homework completion rates over weeks / months.