Having seen the glowing reviews below, I was a bit surprised at how much trouble I had.
For GOD'S sake, don't run it in test mode. I did. This seems to cause it to make continuous backups, one after another, which locked up the server to the point where it needed a manual reboot. Of course trying to get to the admin page to turn it off starts the whole process again. It took me five reboots to catch it. Agreed, there is a warning - but I wan't expecting a complete lock-up on a quiet server.
There is no easy way to force a second backup in any given day (for instance if you have just made a critical upload).
There is no easy way to restore the backup data. You are pretty much sent an SQL script and left to figure it out for yourself. Ok for me, but not a user-freindly tool for noobs.
Owner's reply:
1. It can be restored via phpmyadmin in 1 click (import), cant be done more easy :o)
2. There are 2 lines when looking at the component site :
# configure email (dont touch anything else if you dont know what it is)
# Dont use testmode unless you know what you are doing (can crash site)
I think its say it clear :o)