Here are my thoughts on this topic.
I like complete backups that are recoverable and that are not metered when it is time to recover. I feel that also bare metal is the way to go for me. What that means is that if my computer is lost or stolen I can purchase a computer of about the same make and pull down my entire operating system | applications | configurations - everything and start working again (So system state and system disk). I should be able to do this as fast as my ISP will let me - which is not the case for products like Glacier/Carbonite and others.
I like bare metal solutions because they take all of the guess work out of it - Did I backup my software keys? Do I have backups of all of the important documents, pictures, videos and will I remember all of the custom configurations I've done to my computer?
The downside is that it can cost more to do it that way. Generally speaking a no hidden fees*, no recovery tax**, non-bandwidth limited cloud solution will run you under $0.35 a gig and you should only have to pay for what you use; none of this 500GB block for x amount of dollars. If you use 140GB you should only have to pay for 140GB.
There are other benefits to these solutions as well. I have a virtual machine disk image created from my backups daily. If my computer dies I can spin up a copy of it on my server until my new hardware arrives. I also have a local backup to my server/das if I need a quick recovery.
*I have heard of vendors charging people a fee for versioning which I feel should be included.
**The recovery tax is what happens after you've paid $10.00 a month and then you have a failure and it costs you $300 to get your data back. Many vendors are dishonest about or make their agreements to convoluted so that you do not understand the real costs associate with recovery. They will put a premium on time slots (when you decide to recover), on how much a day you can recover and on just about everything else you can imagine to make back the low initial price.
I don't know if the solution you are asking about is like that though.
Edited by neuronic, 02 March 2016 - 10:13 PM.