Are you looking for a DMS system that will be user-friendly?
M-Files are integrated with Windows, so working with MS Office 365 is very easy!
Video: DMS M-Files and Office 365
The M-Files ECM / DMS solution allows its users to efficiently manage information and access even those that reside on network drives or even key enterprise systems. All documents and data can be easily accessed in a single view, without the need to migrate information from one system or repository to another. Information can be searched based on what it is (by properties), not by its physical location. M-Files are integrated with Microsoft Office products. With M-Files, you can automate business processes, use workflows and built-in artificial intelligence.