Use Cases and Deployment Scope
Lots of my clients use Microsoft Powerpoint Online for ways to collaborate together, they like that they can link out to it from box.com, and do work right in the browser. The system of working within the company amongst a team is a nice to have, but there are some limitations in Microsoft Powerpoint Online that just seem to work better on the desktop version. For sharing copies, and commenting though, Microsoft Powerpoint Online is a great tool in marking up revisions and doing minor edits.
Alternatives Considered
Canva, Google Slides and Adobe Acrobat
Other Software Used
Adobe Acrobat, Google Slides, Canva