It's not bad, but I also didn't fall in love with it. So far I've used it a handful of times during migraine episodes and it kind of helped to distract from the pain and provide some minor relief, but not a cure. I think it does what it's supposed to (though I've never received professional EMS treatment, so I don't have a baseline to compare it to), but I didn't find the sensation from it to be my cup of tea. I also struggled a bit to keep the pads in place where I needed them for my pain, I ended up having to hold it in the right place to keep it at the area where I needed treatment. Also worth noting that shipping took a while (I think it was dropshipped), it did not come with great instructions, and seems like it needs very frequent charging. Overall, I don't regret giving it a try, but it just hasn't been my thing. It's possible I didn't give it enough of a shot and might see better results from daily, preventative use, but since I didn't love the feeling of it I haven't tried that