Microsoft announced at Ignite that the new preview OneDrive client would sync full Team Sites, link here: https://blogs.office.com/2016/09/26/sharepoint-online-sync-preview-headlines-ignite-announcements-fo...
Shortly after this, I got an email from a CEO of one of my clients threatening to do bad things to me if I didn't make his SharePoint repository easier to access via his desktop, so I decided to pilot the new sync client with him.
After downloading the new sync client and putting in the reg key, be sure to open the new client at least once so the association with the "Sync" button in Team Sites is made, otherwise OneDrive for Business will continue to be the default app when you press Sync.
Once I cleared this hurdle, the Sync button brought up the new client. I was guided through the normal OneDrive wizard of selecting which folders I wanted to sync (useful when you have a 120Gb Team Site). Once done the folders started to fly in to the OneDrive local folder. Some Xs appeared on files and folders with a - (dash), once I renamed them they synced up.
When you go to Settings on the new OneDrive app, it now shows all the different doc libraries you have synced and you can reselect which folders you would like to sync.
Overall the speed and functionality of the new OneDrive app is excellent, and for those long suffering folks with half solutions making doc libraries accessible on desktops, I'd strongly recommend it.
