The ease of use, customization options available from within excel itself are great! It's not just about sharing information with other users but also it helps you build processes which can be used by others too as well so all round its fantastic - nothing much at this point except for few minor glitches here n there like when two people try access same file/sheet simultaneously or something similar where they have different permission levels etc., But overall everything looks good! I am working closely along side my team members who work remotely ( India ) using Microsoft Teams & SharePoint Online integration services provided through our MSPs(Microsoft Partner Services).