Yes - it's all cured. My wife has a very sensitive nose and she'd have killed me if I'd brought in uncured and had any sort of "dead" smell in th house.
And cost... the rock or the whole project? The rock was under $1200 delivered. And the project? Well... I'd tell you but our maxed out credit card would have to kill you.
One change that's coming soon... my wife had the idea of moving the kitchen table that's in front of the tank into our sunroom. And the couch/lovesat that's in the sunroom will move to the tank.