Fabulous. Delivery and install was so easy. My husband's back had been hurting with our old mattress, and he no longer has back pain. My hips were killing me and no more pain. I didn't think a mattress made that big of a difference, but it definitely does. Highly recommend. Noticed the difference right away. We've only had it a month, so I can't comment on longevity, but so far so good!!