I received the mattress a month ago and so far, so great! It was heavy to move upstairs by myself, but possible, and after it was out of the package it inflated to the right height in 1 hour. There was a bit of a chemical smell for the first night but it went away completely after some airing. It is very comfortable to sleep in and tossing and turning is literally over. It is firm, but not too firm, just perfect! But if you prefer a soft to medium hardness mattress, this is not for you. It does not feel warm, like many other foam mattress and fits perfectly on my King bed frame. Also it goes back to its original shape right away so there's no sagging. I absolutely love it and would recommend to anyone with back, hips and shoulder problems and, of course, anyone looking for a better sleep!