Shipping was very fast and I received it earlier than I expected. My one year old son and I have been sleeping on an air mattress because our pillow top mattress was involved in a hit and run accident during our last move about two months ago. I knew I wanted a memory foam mattress (I LOVE my mom's) so I read tons of reviews on tons of different memory foam mattresses. It was really difficult to choose one.I was pleasantly surprised that there wasn't a bad odor when I removed the packaging from my mattress. I read some reviews on other mattresses saying that their mattress nearly killed them when opening it because it sprung to life. Thankfully, that did not happen to me even though I was prepared for it. I'm sure I looked like a SWAT team member opening the package. It rolled out nicely and immediately began expanding once the plastic wrap was removed. It had a new smell but it was very very faint.I read on the instructions that it may take 72 hrs to fully expand, but I considered sleeping on it the first night because it had already expanded the full eight inches. BUT as difficult as it was, I waited until the second night lol ?This is my second night of sleeping on it and all I can say is that it feels amazing. It isn't hard in my opinion, but not so soft that you feel like you're being eaten by a marshmallow (I'm claustrophobic so that would never work). I would say it is medium firmness. It actually conforms to your body. I haven't gotten hot either and I'm one of those people that cannot sleep hot. There's absolutely no smell at all now. It actually vanished within a few hours. One thing I did notice is that this bed is a good bit larger than my queen pillow top mattress. I was planning on using the same box spring under this mattress but I'm thinking I might need a platform bed or something longer and wider. It definitely isn't a problem for me since I need all the room I can get (my little one is a bed hog).Overall, I'm extremely pleased with my decision to buy this mattress. I really hope it lasts for a long time. I'll definitely update this review in a few weeks. Hopefully, I'll still be loving it. For all you fellow mattress hunters out there, this bed is awesome!**** UPDATE*****Okay so I said I would update in a few weeks, but it's obviously been a lot longer than that. 4 or 5 months, I guess? The point is, I'm still as happy with this mattress as I was the first night I slept on it. It still looks brand new and there aren't any indentations from where we sleep on it every night. And I pretty much sleep in the exact same spot every night. Since this was a worry of mine, I'm happy that it's holding strong. Honestly, I've never slept on a bed that is more comfortable. Not even once have I gotten hot in this bed and I live in the south. I read a review saying that it isn't suitable to use on a platform bed and I'm confused as to why the buyer thought this. I ended up buying a platform bed since this mattress was too big to fit on top of my box spring. It hasn't affected the comfort or condition of this mattress. I'm super happy with this purchase and I've even considered buying another one in king size since I'm expecting baby number two. My mom agrees that this mattress is even more comfortable than hers, which she bought on sale for $1,200 at a mattress store. I'll update again as time goes on, but I don't foresee me feeling any different about this incredible mattress. I hope not anyway, since I love it so much!