Well, I can't describe it exactly, but I have come to make a rather distinct comparison between my cat's breath and the beardie's poop. :mrgreen: LOL
Beardie poop does have an odor (it IS poop afterall). And, I've found as our beardie is getting older and bigger, the smell is a little more pungent because well, the poops are bigger. I tend to remove the poops quickly after she goes, and once they're gone, the smell is gone also. And in general, they aren't over powering. For instance, I can't usually smell them until I open the screen and reach in to take them out... if they were smelling up the room, I might be a little more concerned.
Hope this helps!
Em