I hate it. I have always hated it.
I need to transfer some mp4s onto my iPhone (work provided handset, no choice in the matter).
Why can't I just drag and drop into a folder like everything else in this world?
Why must I have to go via iTunes and upload to there and then sync/backup/apply/whatever the fuck other witchcraft/sheer luck to get the files onto my phone?
Why is it such a nasty, un-intuitive interface?
Why?!