Let me first say that regardless of anything negative I will say it doesn't change the fact that I absolutely love this topper. The unbox in was a struggle but nothing you can't handle. I was alone, it's definitely easier with 2 people. I love the fact that I didn't have to wait for it to expand to the advertised thickness. It did almost immediately. There was a smell......however once I got it on the bed I could not wait for it to air out. I immediately slept on it. Soooooooo comfortable. Unbelievably comfortable. A con is that it is a half inch short around all sides...I bought the king size. But it's not significant and I make out just fine with it.i highly recommend this product. 5 stars hands down.