They've indicated all of these will be solved in the 'first quarter 2016' so here's hoping. However, this client is still only in 'First Release' stage, remains unavailable for Windows 8.1, and only supports ODB itself, not other SharePoint libraries. Thankfully, Microsoft is finally turning a corner with the overall reliability and functionality of ODB, and is at last merging and improving the client experience with the Next Generation Sync Client. It would often throw errors and most egregiously in this era of Ultrabooks and small SSD drives, had no selective sync capability. Based on outdated technology Microsoft acquired from the disaster that was Ray Ozzie and his Groove product, it has gone through a myriad of name changes and tweaks, none of which ever seemed to solve the problems. Unfortunately, an ongoing low point of the experience has been the sync client. OneDrive for Business (ODB) has become a major selling point of the Office 365 cloud platform for small and medium business, particularly as the service moved to virtually unlimited storage, and many of the limitations that remained from its SharePoint based architecture have been removed or improved upon.