Acronis runs like greased lightning compared with paragon.
System of Incremental backups seems easier to manage.
Individual file restore can be done even from "Image" backups.
Backups can be made to networked devices .
Paragon *might* have improved since I last tried it -- all I can say that I've been using ACRONIS for at least 5 years now with never a hiccup either.
Acronis will even backup and restore LINUX partitions - and the Universal restore feature means you can restore an image to UNLIKE hardware and load drivers
-- I use this quite frequently in creating Virtual Machines from an existing windows image.
For things like backups its worth paying - even though I like using opensource or free software when I can get hold of it.
Just think how much it would cost to replace a music library if you didn't have backup.
I'd go for Acronis. It doesn't cost a fortune -- you can get a free trial to see if you like it anyway.
I think the FREE version of paragon is quite hobbled compared with a paid for version in any case.