The main complaint other than the extent of the smoke, is the fact that by positioning the smokers area where it is, staff have no other option but to walk through the haze. There is no other crew channel available to us from within the terminal.
One hostie has pointed out to me that this door is an emergency exit. It was blocked by a smoker and his bags, and he gave her some lip when she asked him to move. The irony is that if there were a fire, you wouldn't be able to find the exit because of the smoke!