I had the Medtronitc's one. It was the best and most expensive on the market over a year ago. It gave me all kinds of trouble as months went by. The medtronic salesman blamed me also. That's just to put the blame on me. My advice is don't listen to them. They will tell you it don't work for everyone. I too had to turn it up on high and it just li
kicked my leg forward. It would shock me too when I would change from standing to laying down.

After 11 months I went to my other spinal doctor and during another spinal surgery I ask him to take it out. he did, and that was the end of my problems. I won't tell you what to do. Everyone has to make up their own mind about that.
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BC