After a spike of work related stress caused a severe remission I bought a quell. I have had bad experiences with RX drugs so I take supplements and OTC pain killers were not touching the extreme pain. Within a half hour of use I noticed some relief in my lower back. Within 2 days I noticed that I was doing common daily things that I would try before quell but stop when they would cause pain (brushing my hair, crossing my legs, opening jars, walking freely up steps). I was doing them with little to no discomfort. The pain keeps reducing the longer I use quell. I can take tylenol or ibuprofen now and actually notice that they help. Quell hasn't gotten rid of my pain entirely but it has gotten rid of it in my back and hips and reduced it in my arms and hands by at least 75%. My pain is manageable now, improving even more, and I am able to do much more than before. I wear it 24/7 and switch legs when the app tells me to. It has been amazing for me.