I have to chime in and give this developer a TON of credit. I wish people wouldn't be so eager to post a negative review, especially when a developer provides awesome support (see his support page and the many timely replies).
I've looked at all the WP backup plugins out there, and IMO, this is by far the best backup solution I have found. And it by far exceeds all my expectations of what i was looking for originally. The developer has done a tremendous job and included so many options (what to backup, exclude, type of backup, remote backups, plugins and folders to exclude, plugin lists, wp export, scheduling options, auto notifications, etc. etc).
I just installed it on another site, and set up a weekly scheduled backup and kept most the defaults. It works flawlessly. I'm serious. This developer deserves a lot of credit for an amazing WP backup plugin. It's clearly one of the best plugins period. If you run into any issues, just go to the support site and post it. Don't jump the gun and post a negative comment. This plugin has a lot of options, and interfaces with 3rd party backup sites. There are surely going to be issues now and then.
My utmost thanks to the developer for all his work, a great backup utility, and outstanding support!