Good tool for the pain arsenal.
I should have bought the one with 4 inflatable pieces since apparently I need a bit more traction, but this is a good product.  It inflates well, holds the air well and is not too tight.  I use it when my neck and shoulders are tight and it helps. I have degenerative discs in my neck and this helps a lot.  I wouldn't say it is a cure-all, but it's a good tool.
Rating: 4 stars