In an earlier version of Arq, there was no possibility to see which data was actually selected for backup (and which not). Has Arq become more user-friendly?
I'm a current user of ARQ, and it has, in my opinion (compared to Backblaze) a phenomenally user friendly description of exactly what is being backed up, and when, and when something was added, or modified.
Arq is the pinnacle of my rather large backup pyramid which also includes: Dropbox, Superduper, Crashplan, rsync, SVN/GIT and more.