I love this topper.  I recently bought a new mattress and I thought I wanted a firm one.  But every night I had pain in my leg and back.  At first I didn't think it had anything to do with the mattress.  But after seeing reviews of this topper, I saw that other people were having the same problem because of too firm of a mattress.  So I bought it and I am so happy I did.  The very first night I used it, I no longer had the pain.  I couldn't believe it, but it is true.  And for the price, what have you got to lose.