Mars has seen better days -- in the last ten years the cast of characters behind the counter has changed and the food has taken a turn downwards. I've had to give up on the grand slam breakfast because the pancakes now taste like they're right of a premix box. Once, they were very good, light and fluffy.
But if you want a pretty good diner breakfast centred around bacon, eggs and home fries, plus decent corn muffins, there's still a place for Mars.