The deal with OneDrive is you can forget having to schedule backups of your documents, pictures, etc. Everything you store in OneDrive is automatically synced (pretty much reali-time unless you change the settings) when you make changes. I stopped backing up my files (other than periodic external drive backups) because OneDrive works so well doing this. When I have my Surface Pro's replaced for any reason, I just sync back up my OneDrive and everything is magically back over the next hour or so. Settings, apps, wallpaper, etc. and more importantly all my documents.
Also - there is version control with OneDrive so if you did something you didn't intend, you can go get a previous copy out of your OneDrive. Cool stuff. They have taken away a lot of the advanced options I would think because it works best the way it's setup now. I make a drop a file on my OneDrive at work, and at home pick up my Pro and continue working on it. Don't need to tell it to download or anything - it just Syncs Up.