Seems like a good mattress to me.  Not had my guests stay (and therefore sleep) on it yet.  but having done the old roll-around and bounce on it test, seems to be a good enough mattress for occasional use. Don't be put off by it being vacuum packs and rolled up - it gets itself into shape pretty quickly and after leaving it for the requisite amount of time (24, 48 hours, something like that) and airing it (which you need to do for any new mattress) it seems spot-on.