Welcome to Neuro Talk. I don't blame you for wanting to do something positive for your pain. Many folks here have the stim, and they can tell you about it. Most have been positive experiences. I do have a personal friend, who has the pump. Has had this device for 10 years and does fantastic with it. I have watched her get it re-filled, nothing to it. Get a few extra opinions from Neurologists before you make your choice. All of us here will be here to support you, no matter which direction you go in. I wish you all the best. You are in my thoughts and prayers. ginnie