This is just a note for others like me who are evaluating backup solutions for WordPress.
Seems like the developer of this plugin was never overly active on this forum, and hasn't posted anything for more than 4 months now, when he made some commits and replied to 4 posts. That was preceded by a period of inactivity of another 6 months.
I am not complaining, I am sure much time went into writing this plugin and many appreciate his effort.
However, at the moment it seems this plugin is more or less abandoned.