For me, uploading tax docs to my preparers link in painfully slow.  I am sending one PDF scan at a time.  Granted, the scans can be 7-8MB each in size.  Experience with other sites and similar file sizes tells me to expect upload times to be a few minutes over DSL.  However, my uploads to Intuit are getting hung up for sometimes 30-45 minutes, "uploading", then "scanning for viruses".  I have to keep canceling the uploads and re-trying.  When they finally go through after multiple tries, they take just a couple minutes..  Very frustrating.