I went from a 9 year old organic memory foam mattress to this firm hybrid. I like the firmness. It feels better for my back. As I've seen others share, unfortunately the mattress comes with a fairly strong smell and 2 weeks after delivery I'm still stripping the bed, turning on the overhead fan and opening the windows to air out the smell each day. Overall, I'm happy with the purchase in hopes that the smell will eventually go away. I am worried about the fumes I'm breathing at night!