I've been a Dropbox user for several years now, and I even bought their pro service while I could afford it.
And this kind of frustrates me. I like to link to files (namely images) directly without any annoying 'wrapper' pages.
While I have to do similar with Google Drive, at least it's always been like that consistantly. And it can preview more files than Dropbox.
Oh and the security breach
in 2012-2013 that affected Dropbox and only recently has been brought to light as being significantly worse than initially reported scares me.
I have since started using Google Drive and imgur because of this as of today. It sucks, but Dropbox just lost me as a user.