Bittorrent Sync is an amazing product, I'd recommend switching even if you don't have political issues with dropbox. I use it to keep work files in sync between

Bittorrent Sync is an amazing product, I'd recommend switching even if you don't have political issues with dropbox. I use it to keep work files in sync between 3 different computers as well as to backup 100s of GBs of pictures, something that would cost a non-trivial amount to do with cloud providers.