Not worth it
I personally had one and sent to Mom another one. I didn't see any benefits from it myself. I didn't feel it doing anything about the pain at all. It was soothing to massage into my body and it doesn't have an offensive smell, but as for ending pain... not helpful. Mom said it was okay and it worked ok for her but she hasn't asked me to get her another one so I think it is not a completely fail, but it is not worth it to get again.
Rating: 3 stars