Foster's Grille is just an OK spot to grab a burger. Burgers are good but not great and not worth the price you pay. It is basically a build your own burger concept. Our last visit was lackluster. Fries were overcooked and simply terrible. The cheesesteak isn't flavorful at all. The bacon cheeseburger was descent (according to the fiance).
There are other great places to get burgers. Not really impressed by Foster's.