In my previous post Online Storage with File Sync Client in Linux, I have install CopyAgent on OpenSuSE 12.3 x64 but fail to install the official app.
Copy.com is one of my heavy use online service. It provides Copy App for file sync and a generous 15GB storage. Best of all, when you share (and enable the sync) with others, you may share the cost of storage rather than everybody pay for full. You may see their video for Fair Storage on YouTube.
Before sign up for Copy.com, I use Dropbox because it is reliable and provides a file sync agent on Windows, Mac, and Linux. The only problem is the free storage is not enough to me, but the paid version is more than enough and too expansive.
I also try Ubuntu One, but it didn’t sync properly. For example, when I add some files from office PC, they won’t be synced back to my home computer sometimes.