This mattress topper turned our old mattress into a new one! We love it. It is so comfortable. The only thing I don't like is it seems to move around some on top of the mattress even under the mattress cover they send but it's no big deal to have to readjust it. Other than that it's great! When you first open the box and unroll it does have a strong smell but once you let it air out just for a few hours the smell subsides and it's fine. Overall this is definitely a great product. It saved us hundreds of dollars on buying a new mattress.