Seems to work well!
We did not have any issue with smell as other reviewers have mentioned. My daughter suffers from tension headaches from tight shoulder, neck and jaw muscles. She really likes the gentle stretch and pressure on her neck and cervical spine that she gets from this device. She also really likes that it can be used in the comfort of her bed or on a firmer surface, like the floor. The different surfaces give her a different experience with the device in place. She recommends this device for people suffering from neck tension. She feels it has provided her with some relief, and it just feels nice.
Rating: 5 stars