I thought this might be a good option for my blog. Unfortunately, CPU utilization pegged at 100% and it stayed on backing up the SQL database for over 2 hours until I stopped it manually. My site was unresponsive during this time. I was able to use the admin panel to stop it - but it took a while.
I'm using the latest Bitnami instance on AWS - so I used the AWS monitoring to diagnose the problem. CPU usage is the issue.
It did start creating a backup in the backup directory. It didn't show any errors in the admin panel, but as it is - I can't use it.