I began to have lower back pain in the morning after sleeping on my 8 yr old Emerald Crown mattress. It was supposed to last for 15 & the company won't honor the warranty because it has a small scuff from a move. So, I decided to try this mattress out after all the great reviews. My 8 yr old and I were able to get it up the steps(i'm 5'2" & 118 lbs). We managed to get it unpacked and on the boxspring in a few minutes. There was a slight odor, but febreeze and a ceiling fan took care of that in about an hour. (Thanks to the febreeze tip from another reviewer.) the feeling is great and soft feels soft to me, not firm as other reviewers have posted. I guess it's all about individual preference. Love this mattress!