I have been using this software for almost 3 years now, it has become my favorite tool when migrating data between different cloud storage providers (for example Google drive vs Dropbox). The support team helps me with any problems that arise during migration as well! It's free so there are no disadvantages in comparison to paid solutions like Mozy or Backblaze B2Cloud Backup Pro which also provide file synchronization but cost money if you want more features than what we offer by default within our product - at least until recently where some of their new products were introduced without costing anything extra. We use FileSync only because its price was right compared to other similar tools available out-of-the box. Before switching over completely to SyncFileSynchronizer though please try both options yourself first before making up mind about whether they suit your needs best. Data backup/synchronization across.