Step 1: Click "Backup Now"
Step 2: Click "Backup your site"
Step 3: There is no step 3 because you are done, go work on something else!
My only advice to newbies (like me) using this, make sure you put your backup directory above your root and set the permissions correctly. After that it is no harder then checking e-mail. This program should get a bonus 6th star.
I backup my site just for the heck of it now after only a couple of edits because it is so simple and quick.
One last thing: Restoring the site - is just as brainless.