Never used.  Had surgery but didn't need it, fortunately. 
Pieces still in their wrapping. But in a different box since I couldn't fit them in the original box.
Also, I misplaced the instructions after I assembled it but the video is easily accessible online.  And assembly is very easy.
I have to ship it in an 8" by 18" by 38" box since it's the only box I have lying around.