More Free OneDrive Space
I've been a Dropbox, MEGA, and Google Drive user for a long time now, and let me just make a suggestion if you're trying to compete in the cloud storage industry: GIVE MORE FREE SPACE. All three of the companies I mentioned above gives more free space than your small 5GB. Dropbox gives you plenty of ways to get more free storage, Google Drive gives you 15GB of free storage, and MEGA gives you 50GB of free storage. If you want us to start using OneDrive, (because obviously you won't let us upload anything using your OneNote mobile app unless it's straight from OneDrive), than give us more free space than 5GB.
Elliot Algase commented
5GB is nothing. If OneDrive gave 50GB, I'd start using it.