Peter - I didn't write the app, and this site has no official connection to the app, I just did a review of it here. You should probably direct your snarking at the developers rather than at me.

If automation is what you need, then I suggest you use the command-line rsync utility combined with cron or the run shell script automator action. arRsync is just a GUI wrapper to make rsync a little easier for people to use, it's not an automation tool. If you're afraid of the terminal then you might also try CarbonCopyCloner, which has a scheduler function.

Bart.