After being a long-time, loyal Carbonite customer, I'm looking into other options and appreciate this comparison. I was paying over $150/yr for Carbonite so I could get backup of large HD video files (professional) and mirror image options. Every time I'd go on a business trip or vacation and my PC was off for a week, I'd get a notice, which is fine, but something always didn't work right when I returned and I'd have to spend hours figuring out the problem. This time, it was the mirror drive; it said it needed reconnected. After following all the Carbonite support articles, I contacted their tech support, who did a remote session. I have no idea what all they did as I saw all kinds of logs and reinstalls and things popping up, including messing with my external HDs, but not only did my system lock up, but the tech person ended the session without closing out properly. Now my entire PC is totally messed up! I may have to do a complete reformat and reinstall of Windows and check all my hardware as it is so much is messed up I don't even know where to start. Carbonite is extremely expensive. What you get for the comparison price is not much. I'm doing a free trial of backblaze now. I'm considering choosing it over CrashPlan, because all data is backed up, where another comparison table I found showed CrashPlan only backs up partial data. I will be giving up the mirror image option, but I'll explore what other options there are for that. Any ideas for mirror imaging?