I had been so used to eating the supernaturally-fresh sandwiches offered by Milio's, Jimmy John's, and the like that I had forgotten what a delicious homemade sandwich should actually taste like. Mildred's not only reminded me of that, it slapped me in the face with it and set that standard ten times beyond anything I would have expected.
I had one of the most delicious corned beef sandwiches I have ever eaten at Mildred's. And I ate it on a charming little back porch that felt like my own backyard. They added some kind of addictive mayonnaise/mustard to that sandwich that added a perfect amount of tanginess to my sandwich, and the vegetables were crisp and flavorful. The potato salad was cheap and excellent, and the warm beef pita tasted kind of like a tasty hot pocket (minus the feeling of irreparable damage to your digestive system).
Sure, the "cash only" policy is a major annoyance. But Med Cafe has a line out the door every day and I don't see those people bitching about it. It's a small price to pay for good food, and I wouldn't feel good about the credit card companies taking a cut of this place's already-small profit on every transaction anyway.