I have Paperless watching a network folder from my NAS. The scanner scans directly into that folder and Paperless picks it up and processes it within a couple seconds. Even if Paperless went down for a bit (which happened before I upgraded my server), the files remain on the shared drive until it comes back online.
Without that, I had paper piling up waiting to be scanned.
Without that, I had paper piling up waiting to be scanned.