Just received 2 days ago. delivery was ok ...driver just dumped it on the porch even tho I was home..upon opening the mattress just popped open to size..no odor...slept on it that night. It is very firm ,but that is what I ordered. Makes my bed pretty tall but I just got a rubbermaid 1 step for now to help. I have multiple back and joint problems and this mattress seems to be just what I needed. Will see how it holds up, but so far I like it very much. I might add for those interested it has not been hot, cover is nicely  made .