Instant relief
This came with no instructions, so I wasn't sure exactly how it was supposed to go. Because of that and that I had to look it up online it loses a star. Part of the reason it loses a star too is this is really really really hard on your neck, and if you already have sore muscles not going to feel very good. The reason it still gets four stars is because after a few days of using it, I realize how great it does work to relieve pain instantly when my pain is getting too much. It really must work to align stuff in a way that relieves pain. At least for me it did work. I did find putting a blanket over it then using it made it more comfortable and I got the same effects. So if you find it is a little too hard for you maybe try putting a nice little fleece blanket over it. It was hard to adjust to, but once I did I really liked it.
Rating: 4 stars