It took all night to backup 128GB on my local network with my Apple Time Machine. I couldn't imagine what an ISP would think, or how long it would take...
But at the same time, data organization and backups are problems. I came close to losing a hard drive last summer, and know it is easier to make a back-up before your hard drive breaks or gets corrupted, but I still don't keep up with it as much as I should.
I would agree with the above posters that are concerned about privacy and how much they are charging. I would think that the raid array, servers, internet bandwidth, salaries, power, etc to run the business would be way above $55/year.
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