Dropbox is better value and faster, in my experience, than these others. And when it backs up photos, it doesn’t hold them hostage on its servers so you have to keep paying or you lose access to them, unlike Google at least. Nor does it try to trick you into saving files to it when you don’t want to, so you fill up your quotas and end up paying more, like OneDrive. I still think Dropbox is the best of the bunch. It will be a shame to see it go to shit.

I remember my colleague days when I stopped using USBs in favor of Dropbox, I felt I was living in the future.