Recommendations for Document Control system that leverages SharePoint Online?

[OneTechBeyond]

We are looking to implement a document control system, and I would prefer to try and leverage our existing Office 365 environment, particularly OneDrive and SharePoint Online to do so. 

Are there any recommendations for a robust, DM system, but with a slightly more user-friendly UX than the default SharePoint Online interface?

[#2]

You can look into 3rd party products possibly if you want more than default, such as KnowledgeLake and others. I used to use them for things back in the older SharePoint, they had a nice Connect app that ran local and could easily upload docs and metadata including metadata search from external systems. SO just depends what your looking for.

[#3]

any luck with finding what you were looking for?