It will be good to know How BitTorrent Sync stacks up against http://www.tonido.com/tonido-sync/.

I recommend Tonido Android app for file access and media streaming. It pretty much live transcoding of all video formats and even streams FLAC. Don't need to fiddle with the router setting as well. Seriously deserves a look.

Roll your own cloud using Tonido. No need to worry about storage limits. Completely secure and private. One of the best iOS and Android apps.