Adhesive Arachnoiditis: Did a spine stimulator work for you?

I found my symptoms I was having to be AA after a MRI last July. Have been doing therapy , exercising and medication which have helped. Have noticed it getting worst thru the winter and my pain management doctor suggested a back implant stimulator . He suggested the Nervo stimulator. Has any one had this brand implant? Wonder also do any stimulator last or are they short fix?