I don't know either, but, I made the switch from Mozy to Backblaze (after their CEO told me via e-mail that they won't jack up the pricing), and I've been happy

I don't know either, but, I made the switch from Mozy to Backblaze (after their CEO told me via e-mail that they won't jack up the pricing), and I've been happy. (like other commenter, I haven't had to restore yet - aside from some tests)