Looks like this was a previous deal years ago on Ozb but I stumbled across it on the weekend when looking for a cheaper alternative to Carbonite.
Good price for multi computers/users up to 5TB even at the normal rate, compared to Crashplan and Carbonite, which I have used before and were around $120AUD per year.
The app seemed easy to use for me to choose what I backed up. You can schedule it to only upload overnight, etc as well if needed.
Only early days but I'm happy so far and for the price for the first 12 months is pretty decent.
A strong note of caution: I have been using iDrive on a QNAP for a few years now because its the only backup app I can get working on it (old firmware, long story) that aside, their support is the worst I have ever experienced - for any company, anywhere.
If something goes wrong, they will not help you at all, just reply with these one line, strange answers. Its almost as if an extremely bad AI is responding to your tickets. Sometimes after the third or 4th reply they will cycle back to the first reply again. They get reviewed well because they are cheap and most of the time the app works OK but they never review the support aspect.
Again I can't stress this enough - if something goes wrong you will be on your own. This isn't just some disgruntled customer rant either, I'm actually worried that some of you who value their data would trust it to iDrive. I am not confident that if there was a problem and I couldn't restore my data, that they could help me or even send me a physical backup.