Sharepoint's potential. It looks amazing, and I can see how, if executed even half competently, it would make my job much easier.
Where do I start? Microsoft has created a confusing, convoluted, frustrating, expensive web of half-connected, half baked apps they call Office365/Office 2016 (actually these two are separately funded, disconnected dev teams at MS that are often at literal odds, if not outright conflict, with one-another) - and SharePoint is a quintessential example. SharePoint is billed as "mobile, intelligent intranet" that allows you to "Share and manage content, knowledge, and applications to empower teamwork, quickly find information, and seamlessly collaborate across the organization." Except no. In order to "share" content, you either have to "publish" it (akin to publishing a blog page) or upload it - which you can only do to the particular SharePoint team's exclusive OneDrive. You can't connect another team or individual's OneDrive folders. You can't connect any other services like Google Drive or Dropbox. You can also share content via OneNote, but only the particular SharePoint team's exclusive OneNote - which is particularly maddening. Why can't I sync an online service FROM THE SAME COMPANY?
As far as I am aware, SharePoint is also one of the only Office365 products without a desktop app - so if someone on my team does decide to actually publish something, I have to have SharePoint up in my browser to be alerted to it.
Speaking of confusing, Microsoft has included several of SharePoint's features in Teams. Teams bills itself as a "hub for teamwork" where you can access "All your content, tools, people, and conversations." So which should I use?