First, my VOTE. Team Drives is now live and available to all users. But when I open up the Insync panel, it doesn't show Team Drive, just My Drive. Add Team Drive with selective sync and bingo. ASAP.
We are almost 100% certain to implement Team Drive and as part of staff training I would like to strongly encourage (as in nearly mandate) that everyone install Insync and use it to mirror the parts of Team Drive that they are using onto their hard drive.
In terms of other requirements - not closely related to existing core strengths of Insync - we are looking for tools to manage GDrive/Team Drive folders. Moving folders (regardless of ownership) and their contents (again, regardless of ownership) from one location to another.
Also reassigning ownership of folders & their contents. So if FolderA and its Docs1-5 are all owned by UserX ... and FolderA is also editable by UserY who has added Docs6-9 to it ... I want to be able to select FolderA and change ownership from UserX to UserZ, transferring FolderA and Docs1-5 all in one single simple action, but not affecting ownershipo of Docs6-9.
I realize these aren't the things that Insync is good at providing. We have evaluated cloudpages, cpanel, powertools, aodocs, and bettercloud. These tools are operating in this space but none is a home run, I have the sense that they don't really deeply understand the GDrive system architecture that well. Maybe you do and could partner with one of them to improve their offering and then offer a bundle deal of the two products to really give organizations simple control over Drive content.