So far the mattress has been really great. It's comfortable and easy to fall asleep on. Though I am into week three with my new mattress, and so far each morning I have woken up to my arms being "alseep". My only assumption is that this is because my body is still working to adjust to a new sleeping surface, as I always sleep on my back. I just wasn't expecting such a long adjustment period, but the mattress is still very nice.
We have had our new mattress just over a week. First night was rough but since then I have slept better then I have in forever! Fiance loves it too. Hope it holds up for many, many years!