HI, I have had both the Abbott SCS and DRG for my feet and legs and lower back. unfortunately they both were awesome in the trial, but neither did anymore than 5% relief once I had the final installation. I had 5 revisions of the SCS with no change in effectiveness.
I recently had both of them completely removed.
I now have the Medtronic pain pump which has worked way better than any other device. Not perfect, but I am able to be up and do yard work all day long. I pay for it if I overdo it, but it still helps.
I am actually going for a revision of the pain pump in a few weeks. It was implanted to help my feet, legs, and lower back however, it has never done anything noticeable for my lower back.
As you know everyone reacts differently to treatments, it's not encouraging, but you just have to keep trying things until you find one that works.
I wish you all the best of luck.