The mattress is too firm. Granted I've only had it 3-4 weeks; it's not the experience I anticipated given the great marketing. My sleep is actually worse than it was on the old mattress. Not totally sold, yet. :(
I've had the mattress for just over a week. I'm still evaluating it but it seems to be running a lot hotter than my last memory foam. I keep my place pretty cold at night and wherever I'm laying on the mattress is getting pretty warm. It's also a little less firm than I expected.