I have suffered with a bad back and a tight neck and shoulders for years. I have tried all sorts of other products, massagers that go round your neck or go over the chair but nothing was able to get to the problem and none of them were strong enough to help. I found this and thought I would give it a go and I'm so impressed. It comes with so many different attachments depending on where you need to use it and it's incredibly powerful. You don't need to use this for long to feel the benefit. I use it after work or like the other day after decorating and it really helped to loosen the knots in my neck and shoulders and ease my back pain. This is all I need now and I can't recommend it enough.