I use iDrive, 20TB for a couple hundred bucks a year. I’ve not found anything that compares to that in pricing. Backblaze I think it’s about $1600 a year for the same storage and the major cloud providers are much higher than that. I view cloud backups as the the last line of defense in the backup strategy. So all the nice features that most providers offer at a significant price increase just don’t make sense to me as I won’t use them. I have the iDrive Linux app running it detects what’s new in the monitored directories and shoves them up to the cloud hopefully to never be needed.

I noticed on their site they say they have a import/export feature. If it’s not what you are describing then what is it?