I looked at this pad as an alternative to spending a ton of money for a new mattress.  My back has not been happy and I needed to make a change.  This pad was on backorder and the customer reviews were were mostly excellent.  Its been about 3 weeks since I started sleeping on this pad and all I can say is that when I sleep, it feels like my mattress is hugging me.  I like  a firm mattress and this pad allows me the firmness and the comfort.  It also feels warmer now.  My mattress was starting to feel like sleeping on a block of ice.  This pad is worth every penny I paid for it and every day I waited for it.  I sleep better at night and feel much better in the morning.
Also, I was worried that it wouldn't be large enough to fit my bed as I have a tall mattress.  It fits just fine.  If you want a little extra comfort in your life, this is an inexpensive way to have it.