My use of AC Backup is to a USB drive and to an ethernet based drive which I have moved to the hospital building across the parking lot so it is secure if my building were to burn - I use AC BAckup with II every day - after about 10 years of data and imports my backup is 32 gig. My office scanned thousands of old charts and shredded them all (took a few years). AC backup works fine, but I would not want to try to upload 32 gig over internet every day.
