I could not wait to get the topper because my back was killing me. The cost is less than half the price in stores plus you do not have to lug it home and it was there waiting for me when I got home,.all I had to do was just roll it out. What a great night sleep. It did smell for a night or two but it also said that in the packaging. The smell was not too strong. I would recomend the 4 inch pading. I had purchase one from the store a year before for a smaller bed which my friend daughter sleeps on and she loves it. another plus is that I have a thick matress and the sheets alway ride up on the bed and gets lumpy. With this topper I put the sheets around it and it stays put and does not ride up and get lumpy during the night. I do not turn over and over during my night sleep. My brother has an entire Memory foam bed which cost $3,000 and this is just a comfortable as that expensive matress. i would recommend it to any one who wants a great night sleep with out tossing and turning. This has great value for less cost.