I've used Box extensively in the Enterprise and never really "got" it - it was cumbersome and often confusing. It just seems like another layer on top of what could be used as a first-party integration in something like Onedrive or Google Drive.

Perhaps where some of the "big" wins are its integration with other enterprise products like Salesforce, but we just didn't understand it because it felt like another layer on top of our office suite that wasn't necessary.