The mattress is everything and more of what I wanted in a mattress. In spite of being "extra firm," it isn't rock hard. It gives nicely with a nice built-in foam top. It doesn't form lasting depressions or lumps, anywhere, like my last mattress. I can move to anywhere on its surface for the same comfort experience. Also, the customer service was very helpful in guiding me in the choice of this model. It was easy to order, I didn't have to travel around to see it in person, the 90 day test period was reassuring. I am very pleased and will NOT be returning it.