I've owned many mattresses and this one isn't terrible but it isn't great either. I've never had a mattress take so long to return to it's shape after being released from it's vacuum sealed packaging. Although they always say that i can take 48hrs, most mattresses are good to go in a few hours. This one took over 2 days and, even then, was deformed and loose at the corners. We had to start sleeping on it for a week before those corners filled in. This mattress is supposed to be flippable. The soft side is pretty decent although I still had some back pain when sleeping. The firm side is unbearable. My wife calls it sleeping on the floor. Lastly, the mattress cover is removable, and therefore washable, but it's pretty cheap. I'm still in my trial period but it's highly unlikely that we'll be keeping this one. The price is attractive but the quality suffers.