I work for an MSP that uses Datto to back up lots of servers and saved our bacon after the Kaseya hack! (Ironic how they're buying you now.) And I remember when you were using VBox, QEMU is much improved. Having QEMU boot up the backed-up VM to a screenshot that you can just email to us really helps prove to auditors that yes, our backups are tested! Now just replace all the spinning hard disks in your data centers with NVMe so we can get decent performance. :)