I love Denny's restaurants. Yes, you get a broad range of service and food quality by location and time of day. This particular visit was not so great. They weren't all that busy and seemed to have a full staff on duty, but service was painfully slow. PAINFULLY SLOW! I ordered two eggs, two pieces of bacon, hash browns and toast. It was NOT two eggs, I can tell you that. The bacon was so tiny it hardly made up one normal strip of bacon. It was all cooked well enough but this visit just rubbed me wrong.
I was at the Kingman, AZ location a few days ago and had exactly the opposite experience so , you know, hit or miss with these chain restaurants.