This mattress is all that it is stated to be. Quality seems good, comfort is good, and seems breath well not being overly hot. It tends to develop a rise or high spot in the middle which give a minor effect of incline towards the edges (two people each sleeping on a side seems to cause this..?? not really sure), but it is still of reasonable comfort. A problem ofwhich you should be aware is that this in kingsize is a monster. It is very bulky, weighs in 150 lb. area, and not grips or handles on sides in order to lift or manipulate mattress and this makes fitting any sheets or bedding a true challenge. Just be aware, as it takes myself and my wife just fit bedding on this.