I tried SugarSync and Syncplicity before settling on Dropbox. I don't trust either of them with my files, but I've been a happily paying customer of Dropbox's

I tried SugarSync and Syncplicity before settling on Dropbox. I don't trust either of them with my files, but I've been a happily paying customer of Dropbox's for 4 years now. I care way more about not losing my work than I do about $10/month. Cubby may have an uphill battle ahead of it.