This mattress shipped quickly, and arrived conveniently packed in a compact box.  Once freed from its packaging, it was really fully expanded quite quickly (~15 minutes even; but definitely within an hour).  Also, unlike other foam mattresses & toppers I've experienced in the past, there was literally no smell that needed to dissipate. I was really impressed (and relieved) by this.  The mattress came encased in a removable cover, which is a nice feature.  The only 'negative' thing I would mention, is just if you're used to a firm surface, this mattress would be an adjustment.  It's definitely supportive, but as shown in my picture, it does have a lot of surface give.  Also, make sure you consider the height along with any frame/box spring you have given it's low profile.