Sync to cloud option

Hi

Has anyone made use of the various sync software options available with ReadyNas Duo V2?

I was looking at either cloud sync, GoodSync or Allway Sync for the ability to do 2 way sync between my one drive and NAS and vice versa. 

If anyone has any experience on this I would be grateful for your review?

I would consider all other options as well. 

Bdrive Support Forum - NetDrive and CloudSync

Free File Synchronization, Backup, Data Replication, PC Sync Software, Freeware, File Sync, Data Synchronization Software | Allway Sync – File Synchronization That Works

File (goodsync.com)

Thanks