We used it during our last conference of 1 hour session length as an introduction to new features in this year's release (2nd version). I like that we were able get live questions via screen sharing from attendees who wanted help or clarification between sessions/sessions without having them come up at break time which would have been disruptive! There was some lag when doing multiple things such as changing screens while taking notes - maybe just my computer but not sure if others experienced similar issues? No problems encountered by myself personally using it though there are many people out their actively working day jobs teaching so they may experience different types of challenges than me since mine wouldn't involve heavy lifting etc...