We love it.  Took about a week to get used to the change from our prior mattress (old innerspring).  But once the adjustment took place, we agree it's super-comfortable. Definitely NOT FIRM, like a hard mattress, but very supportive for both of us (side and back sleepers). My  husband has lower back issues, and he loved it right away with no change of opinion after almost a month.  We gave it the full 72 hours to expand.  The soft top layer is very easy on the pressure points.  Can't beat it for the price!.  Shipping was fast. We have already recommended it several times.