Its just ok
It took quite a while to pump up to the height I needed, and I wasn't quite sure how to use it. But once I did get it filled up, I felt my neck stretch slightly and relieved some stiffness. I stretched back and forth for a few minutes and that felt good. It is awkward to use around other people, as it squishes your face and cheeks (I apparently looked like joker). I can see how it would be used to stabilize a person's neck, but I didn't have that need. I was looking for pain relief and stretching, so I rated it a 3, it's just ok for that.
Rating: 3 stars