[agotterer]

Has anyone tried sync.com? From their website they claim end to end encryption and seem to take privacy ands security seriously.

[microtonal]

As long as the client is proprietary, how can one know that they are any better than Dropbox?

Feature-wise sync.com looks interesting, but there seem to be very few users out there. I would be worried that they disappear when they run out of VC money.