Paperspace founder here. We offer an instant rollback to a safe state which is a neat thing that VMs can do that regular computers can't (or at least don't do very well). Everything is stored in the cloud so have your entire desktop available to you at all times meaning you wouldn't need to transfer your stuff to a cloud storage service. It's actually just like cloud storage but with the added benefit of having your whole operating system (apps, settings, shortcuts) on the go.