Show the option to backup document folders on initial setup
OneDrive for Business backs up Documents and other library folders by default. This is a good idea in principle. In implementation, since it moves those folders to a different location on the drive, this can actually break other applications that assume the locations of those folders (or stored it before OneDrive was set up).
I lost hours of work trying to understand why an application was not using a file that it was supposed to be using. It turned out that there were different versions of the file in my Documents and "OneDrive - Microsoft\Documents" folders.