So far I like crashplan for remote backups on my personal machines (a few Ubuntu and one Windows machine). I did a little research and it fits my needs.
Initially looked at Backblaze and saw Mac and Windows only support so that was a no-go.
I really wanted to use it with Ubuntu but it was incompatible with an encrypted /home. The daemon would start at boot and, unable to mount my target directory in /home, would create a new target directory in / and fill that up.
I opened a ticket and their support people seemed confused by Linux, and told me to check the user forums. Since this is a paid product I saw this a poor service and cancelled.
It did look interesting but I got the impression that Linux wasn't really supported - just that a Linux client existed.
Initially looked at Backblaze and saw Mac and Windows only support so that was a no-go.