Comfy!  
This mattress is quite nice.  It was packed and wrapped well.  It didnt have any type of odor - which Im sensitive to.  The quilted top makes for an extra soft layer to enjoy, yet it firmness is still effective in the way it doesnt aggravate my back issues.  I havent noticed any sweating effect, although its been rather warn outside.  As pictured, Im designing my room and have chosen to create a high bed.  This mattress allows me to climb up into it and sink into it very comfortably.   Im going to preserve it by keeping a fluffy mattress protector over it - one that has the same quilted pattern - so I wont lose that extra feature.  If it feels different,  Id prefer to simply double of triple up on my fitted sheets, so I can enjoy the feeling of the mattress. 
Time will tell how long it stay intact, but based on the construction, it seems that itll last a long while.  Im please.