This box is very easy to use.  There's no settings, no knobs to turn, no switches to flip.  Plug the battery in, hook up the electrodes and sit back.  Everything is reprogrammed to take the hassle out.   When you don't feel good, the last thing you want to worry about is how to set something up. 

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The original design was cumbersome with 3 separate units that needed to be hooked up and hauled around, if you wanted to be mobile while using it (which most people these days want).  This was the biggest feedback item that I kept hearing, So I got it down to just one box and its battery pack.