Not the voice of experience speaking...
Whilst I haven't worked with Accellion itself there are plenty of other similar file transfer/workflow type packages out there.
Why not SFTP you cry? Well for one thing, these platforms tend to offer lots of features that companies find genuinely useful without having to roll their own and usually support various different transfer/authentication options *including* SFTP, IP address whitelisting etc.
Maybe you want to push files to a remote server, perhaps you wish to be able to see the time and date that a client logged in to pull their files. Perhaps the recipient requests that certain files be retransmitted because they had a processing issue on their side.
None of the above is hideously complex, but it is non-trivial if you want it to work well and not have an interface that stinks.
Biting the hand that feeds IT
