Like many other people on here, I have been having back problems (pain everywhere, really) from my mattress, but could not afford to buy a new one. After talking to a coworker about my dilemma, she said her friend bought a memory foam topper and hasn't been happier. Intrigued, I logged on here and stumbled upon this Serta memory foam mattress topper. I read ALL of the reviews before I committed to purchasing it. Christmas is coming up, and I was hesitant to buy myself something before finishing up my gift shopping. Oh. My. God. Thank the LORD I bought this when I did! It is absolutely AMAZING! I don't know how I went so long without it. I wake up every single day with NO pain, and that has NEVER happened to me before on that bed! Trust me, and the dozens of other happy people on here. If you suffer from back pain or waking up many times throughout the night with discomfort, this is most definitely the answer. I am so happy with my decision. As for the smell issue, YES, it did have a strong chemical scent when I took it out of the box. I let it air out for about 12 hours before sleeping on it. The smell was not completely gone by the time I lay down on it, but after putting sheets on it, it was not strong enough to bother me. The smell went away completely within a few days. Even with the smell, I still give it 5 stars. It's just too great to rate any lower. The only regret I have is not buying it sooner.