Since you have been using Mozy before, can you compare them, what are the things you don't like or like with Backblaze. I have 300GB so I don't want to back them up 3 differet times.
Mozy always seemed to be getting confused about what it had backed up already and what still needed to be backed up. One day it would tell me I was fully backed up, the next day it would start a backup of 300 GB of files.
Not very confidence-inspiring to say the least, not to mention the constant heavy uploads that weren't supposed to be necessary.
I've not had that problem with Backblaze. The best part of Backblaze to me is the ability to log in on their website and retrieve a single file or set of files. That's huge. Mozy did not offer that at the time (I don't know if they do now).