For "sinful" breakfasts or "a quick bite anytime", eaters of "all ages" flock to this "always busy", "subtly Greek", retro-looking Maryland diner chain; the menu is "novel"-length, and the "tasty" grub and "phenomenal" desserts – served "lickety-split" by "courteous" staffers – are a "great value for the money"; P.S. some locations are open 24/7.