Dropbox has been incredibly reliable in real time from any device at any time I need files. I saved an incredible amount of productivity using Dropbox for both personal and professional pursuits. It does an automatic backup of files as you're working on them so I've never lost significant data.
Use of Solution:
In one case, when my phone was stolen, I was able to locate it because the person who ended up with the phone was taking pictures that linked to my Camera Uploads.
Disclosure: I am a real user, and this review is based on my own experience and opinions.
Feb 01 2015