Bought for my 82 year old dad & He's happy
Dad's had a lingering nerve pain in his leg/seat that makes it uncomfortable for him to sit for very long.  It makes it hard for him to drive even short distances to the store or sit at the table to play cards with his friends.  We have one of the Purple Mattresses (love it) and when I saw this cushion, I figured it would do the trick for him.  I was right. sometimes Its the simple things in life that matter most.  And, his friends all want to see it / test it out.  I think he's enjoying being the center of attention maybe more than sitting comfortably.  Only minor negative is that the foam is pretty dense, so its a little on the heavy side for a seat cushion, but he hasn't complained about it.
Rating: 5 stars