I was a tad skeptical to start with - I mean, one mattress, how could so many people love it?! Well, I still dont understand the engineering magic, but man, it works. My husband and I both love it, we've just so much less back pain, and there is very little movement transfer; our old mattress would have either of us bouncing around like we were in a bounce house if the other sneezed. I love it, and its definitely worth a try for anyone.