Denny's is probably one of the worst restaurants to go to in the area. The service is usually poor, the cleanliness of the establishment is questionable and the food is basically a heart attack on a plate.
One time I found hair in my food. The waitress apologized and walked away. She didn't offer to make it again, she didn't offer to take it off my bill. Nothing. I had to complain to the manager to get it removed from my bill. Customers shouldn't have to track down the manager to deal with a simple customer service issue.