Needed a new mattress due to MS so after looking reviews for various mattress I decided on this one. Delivery good  on opening expanded within short time  minimal smell from foam so no issues there. What I would highlight though is check depth of any mattress you are thinking of purchasing as although it is 20cm deep my bed initially looked low but not a complaint. Would definitely recommend as even from first night noticed difference to my back. Bought it just before Black Friday deals  still got it at amazing price so keep in mind if purchasing one at another time.