Complete solution to all of data synchronization task.
The user does not need to understand the sync algorithms and architecture and choose which data and which way should be synchronized. It will have one complete solution - for notes, light documents, music, big data files.
All devices will have an up-to-date set of data, without unnecessary Internet costs and longtime client-server synchronization.
This will also attract commercial users - development teams who will not need to buy the volumes of cloud storage and overload the network when copying large amounts of data to all devices.
Just imagine - you have one application that synchronizes your personal notes and documents, working documents, and you always have up-to-date data files (application releases, videos, software builds) - even with a weak Internet (or without internet at all)