I was sceptical at first with buying online, cheap price and not knowing what you’ll get till you open it. Came in a smaller box which was great as I didn’t have to struggle to bring it into my apartment by myself. Once opened it only took a couple hours for the topper to open to full 2”. Did have a “weird” smell at first but its already the second day with it and I can no longer smell it. I’ve had one sleep on it (hence the 4 star rating and not a 5) and woke up without my normal back pain which is what I was looking for. Overall this was a fantastic deal and a great mattress topper whether your looking for one for your main bed, spare bedroom, camper or more I would 100 suggest this topper.