It's always interesting ordering something from people who represent themselves as whizzes at running a business.
I recently received my GTD Fast tapes. The plastic case in which all the separate cassettes are stored was torn and falling apart. So I called The David Allen Co. and left a message. Some bright cheerful person called me back and said they'd ship out another. I just received it.
So, just in case you thought that DA's company might be a disorganized, unpleasant mess , I can tell you from my little glimpse of it that it appears to be well run.