I did a lot of research before finally purchasing this mattress topper. I have shopped both in stores & online and I firmly believe purchasing this mattress topper was the best decision. I have had this for 3 mos now & have slept soundly and it is like sleeping on a cloud. I no longer wake with a sore back (and I have arthritis in my low back). Prior to sleeping on this mattress, I was also experiencing problems in my shoulder as well, since I'm a side sleeper. I no longer have pain in my shoulder area either. As far as the packaging, it was VERY easy to roll out and was fully expanded to its normal size within 5 minutes and there was no smell at all. I had read comments regarding bad chemical smells with other memory foam mattress toppers, but this one had no smell at all. It fit my kingsize mattress perfectly. I have already recommended this topper to several of my friends and you definitely cannot beat the price here on Overstock.