Devil's advocate wanted: Disadvantages of moving documentation to Confluence + Jira

[Eileen Palsson]

Last week I asked a question:

https://community.atlassian.com/t5/Confluence-questions/Can-I-use-Confluence-for-creating-tech-docs-AND-for-tracking/qaq-p/988682

After getting a lot more info (not just on this forum), I believe that this move may be the way forward for our company. Our current docs (Word to PDF) and system of tracking them (Excel spreadsheet and associated Word documents - OMG) are from the Stone Age.  

But I also want to know some of the disadvantages of moving them to Confluence and Jira – for surely there are some. Please comment with problems you've had (or can foresee).

Thank you.