I previously had a high end Ortho support mattress and this is so much better. They are super comfy, not too soft but give great support, not to hard but it has some give to let you get comfy.  The only bad thing I have to say about it is, like most women my age I get hot flushes/sweats, so the cooling layer was an added bonus. However I use a topper, to protect the mattress, which means I don't get the benifit from it. In fact with a topper, it is super warming. Great for the winter but not if you get Hot flushes. LOL. Other than that, I can not say a bad word about this.  
Delivery was a surprise, told the 24th, but it showed up on 19th.  Kind of ruined my weekend plans, but was happy to have them early.