Even being a company that spends 50k a year gets you next to nothing wrt feature requests or support outside of what would be given to a free user, aside from speed of reply. If you want any level of control over data and sharing, you're sent over to "sookasa", a shambles of a business, or you can look at non-recommended solutions like boxcryptor (an incredible product that unfortunately carries it's own administrative overhead).
If anyone from Dropbox is reading this, the things that make my life the hardest are:
1) removing shared folders from a user's account. (Impossible unless your IT department controls every shared folder in your organization. Difficult & time consuming if they do)
2) Deleting a corporate account from all devices, removing folders. (Impossible)
3) Offering any sort of encryption (need to use 3rd party, unreliable)
4) Managing/reverting changes. Terribly ugly, difficult, and time consuming process. It's bafflingly inefficient, and in an organization of any size clueless or new hires are going to create these problems on a weekly basis.
5) Management and reporting APIs don't exist.