Documents in Sugary Sync'd Clouds

I just finished setting up my SugarSync Cloud storage and read that this will soon replace thumb drives. I think I could go for that, especially because I worry that my pictures and documents would be lost if something happened to my laptop. I have made backup CD's before, but it's kind of a pain. SugarSync detects changes to folders and automatically updates the changes. So if I add pictures to my pictures folder, SugarSync saves them as well without me having to do anything. It sounds too good to be true, but I am willing to give it a try.