SugarSync is being used as a backup assurance for my company in our post-production department. We use it to back up multi-million dollar project files and select assets daily. My initial thought on SugarSync was for it to be constantly syncing our files without much oversight required. It has not worked out as promised by SugarSync videos.
As far as doing an initial backup, SugarSync the program works great! Our account went over our storage limit once, we instantly removed some files, but since it went over it would no longer sync. I had to manually delete everything from SugarSync and re-sync the folder for SugarSync to start working again. Since this happened, SugarSync does not sync files daily- it usually requires forced syncing.
The idea of SugarSync is a great one, I love what it is supposed to do, I just have not had the success I hoped for. I have been in touch with SugarSync support staff multiple times and they are pleasant to work with, but for the most part, unhelpful. All they can recommend is to wipe your account and re-sync all files.