This was on sale and we like it more than we expected to. We needed something to fill up space, as our new mattress isn't as deep as our fitted sheets are. (Why can't mattress manufacturers and bedding manufacturers get together on this?! It seems that, in the old days of coil mattresses, manufacturers kept adding plushness with thick pillowtop designs, and bedding manufacturers responded by making sheets that fit up to an 18" mattress. NOBODY has that anymore. So when you buy a new mattress, your sheets don't fit right and are sloppy and loose, which doesn't feel good to sleep on. It's a major pet peeve!) This topper helps solve that problem. It didn't smell like chemicals, it fluffed up very quickly (we live in a dry climate, though), and it feels pretty nice. We have a firm mattress and didn't want it to make it feel too squishy, and it doesn't. I don't know if the 5 "zones" make any difference whatsoever, but it was a good value so we have now ordered a 2nd one for our guest bedroom.