Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worthless

I have some pretty severe problems with my neck due to having been involved in several car accidents (C-4 thru C-7 discs are affected). I bought this item based on the reviews, and quite honestly, it didn't "do" anything for me. You can accomplish the same effect by rolling towels (or something soft) and placing it under your neck while lying on the floor. Save your money...I wish I had!