It's been about 2 months now since we have had the 5.5 inch Grande Hotel memory foam topper. My husband and I love it. It only took a few minutes to fully expand and there was no odor what so ever. It's so comfortable and I'm waking up with no aches and pains like I use to. You do need to get deep pocket sheets though, which was not a problem. I give this an A+. My husband is just as happy as I am with this topper.