I have been here a few times and have always had a good experience with the wait staff and considered the food to be passable.  Before last week, I would have probably actually given this place a nice 4 star rating.  HOWEVER, I work in the area and drive past the diner on a daily basis at about 6:30-6:45 in the morning and what I saw the other day has turned me off of this restaurant forever.  As I was on my way to work, I was stopped at a light in front of the closed diner and saw a man prepping the food for the morning rush and he was SMOKING while working with the food.  I am not squeamish when it comes to smoking for the most part, but this is not 1960 anymore and there are health department regulations.  The more I think about it, the more utterly disgusting it is to think of the potential cigarette ashes in my food.  After seeing that, I will NEVER, NEVER, NEVER eat there again.