If you like the pillow-top style mattresses that you sink into, this is probably not your thing. But if you're like me, with back problems that benefit from a firm and supportive mattress, this one works great! I would have given it five stars if the cover were a little less "plastic" in feel, but even that turned out not to be the problem I feared -- even with no mattress cover, it breathes just fine/ doesn't cause that sweaty polyester effect. And, as one other reviewer mentioned, don't be worried when it arrives rolled up instead of flat! Once unpacked, the quality and firmness is such that you'd never guess it had traveled all the way to your house bagged like a sausage!