I use OneDrive but also have Crashplan. OneDrive keeps my laptop and tablet in sync, while Crashplan protects the content from loss.
Broadly speaking, this is the same solution stack I use. Unfortunately staff at many of the sites I've visited recently believe that they don't require an additional formal backup solution as their files are securely backed up in the cloud using OneDrive/Dropbox/etc. just like they use at home. As we all know, IT solutions architecture for an enterprise can be quite different from a home user!