Why would I want a standing desk, you may ask? After learning the plethora of information on biomechanics, I learned how bad sitting is for humans. I have had bad back issues in the past (if you know me well, you might laugh at the understatement) so sitting has been a big problem for me. Standing just seemed like common sense.
Why didn't I convert to a standing desk sooner? Standing has a lot to do with good posture and I have had terrible posture most of my life. Therefore, standing was not very comfortable for me either. But after learning a plethora about posture and HOW to achieve good posture easily and without thinking about it (but feeling it), I now know how to stand properly (at least I think so).
So far the results have been a much happier back (and happier me as a by-product of the lack of pain) and somewhat more tired legs. I'm working on reducing the muscle action required for standing and balancing better but it is a process. My feet are a little more sore after standing for a long time but they are adjusting, too.
Here's a pic of the new setup (old desk, new platform):
