We selected OneDrive because the software integrates well into the other Microsoft Office Suite products. OneDrive, gives you that 1TB of storage for less money than Google Drive does. Despite being a Microsoft product, OneDrive has clients for non-Microsoft operating systems, too, including Mac OS, iOS and Android. OneDrive's non-password protected link makes it easier for the receiver to view files.
We send files to our clients that are large (over 10 MB), and being able to 'share' with other people is very helpful. Clients can download files and upload new files to the shared folder. Once uploaded, they automatically sync to my folder. There is no longer a need to send large files via email.