Overall a great very comfortable mattress. Better than any spring mattress I have ever owned. My only complaint is that I get extremely hot sleeping on this mattress. I have no clue why but it seems to absorb my body heat and throw it back at me. Perfect for winter, not so much for summer. I put a heavy blanket down in summer to sleep on top of and it seems to help. The mattress is so comfortable that this is minor in comparison. Comfort By far the most comfortable mattress I've slept on. I was hesitant at first buying a non-spring mattress but 2 years later I do not regret my decision at all. It seems to mold to your body and provides a wonderful nights sleep. I wake up feeling refreshed and not wanting to get out of bed it's so comfy! Support I have horrible back issues do to a car accident. This mattress supports my back well enough that I'm not tossing and turning all night long trying to find that one spot to sleep. I never wake up stiff or in pain. Firmness It is firm, it does leave an impression after you've been on it a while but I think that is normal of any mattress like this one. Durability We've had it just over 2 years and have two wild kids that like to climb up and jump and run around on it. It's still just as firm as the day we bought it.