Moosey,
I did the trial for 5 days. My RSD/CRPS is in arm & hand so my P.M. Dr.
started in my lower back (less likely to spread) & the wires were threaded up to my neck area.
The next day I went back & the Company Rep. programmed it. He basically tried several programs that targeted slightly different areas with slightly different
sensations. I went to P.T. 3 times while it was in trying to gain range of motion. It was inconvenient because you can't shower, bend, stretch, lift or twist. For me, it did not help the pain any better than anything else, but there are others for whom it is a lifesaver. Since the benefit did not outweigh the risk
I did not get the permanent one.