Files.com turns each custodian, broker and administrator connection into configuration: files are pulled from or pushed to the counterparty on its schedule under your own hostname, decrypted, renamed and routed in flight, and landed in storage you control. No counterparty changes how it delivers, and no application that reads the landing folders is rewritten.
Each counterparty dictates its own protocol, credentials, filenames, encryption and cutoff. Meeting all of them with a self-hosted SFTP server, rename scripts on a job scheduler and a person on a desktop client means every new counterparty is more code to write and watch, and a late file is a portfolio problem before anyone notices.