[baldfat]

I don't use it for sensitive information BUT for my needs this is a great solution that is MUCH better then a cloud based file system. I have my media files for my Phone just BTSync them when I need them and it works like a charm. Also works great for syncing my photos between my computers like photos.

[joelthelion]

It would be perfect if only they open-sourced it.

[higherpurpose]

There's Syncthing, but I'm not a big fan of the whole "server"-like interface. They've improved it recently, but it still seems quite non-consumer-friendly.

http://syncthing.net/

[nodata]

Why don't you suggest some good changes? The issues page on github seems quite active and quick to fix stuff.