I was already lukewarm about this plugin because it required me to download 6 separate backup files every time I back up, which is a hassle. Then tonight, I was able to download the first three, but as I was downloading the 4th file (themes), I received an alert from my antivirus program (Avast) that a trojan had been blocked. Then I got a "this page doesn't exist error" when I tried again to to download the themes backup file, and the other two remaining backup files.
I wasn't sure if this was related to the alert or not, but to be safe, I deleted the first three files, and started the process all over again. The backup process seemed to complete normally, but this time I wasn't able to download any of the files.
I tried it one more time in a different browser (started with FireFox, then I tried IE), with the same result. Thought I'd try support, but it's only available for premium users. That's WAY too much hassle and possible risk. Was the trojan related to the plugin? Don't know, but I can't rule it out. Uninstalled it, and do not recommend!