This mattress is super comfy! Not too firm and not too soft. It is insanely heavy while in the box, definitely takes two people to carry! Puffs right up once you break the plastic seal, it's cool to watch it take form.  It does have an aroma of course, almost like paint, but once the sheets are on you don't smell it. We only let in set for about 12 hours before sleeping on it cause we couldn't wait any longer and have had no issues! Great purchase!