One of the benefits of ordering from P. Terry's is that you can easily customize your burger and add a number of toppings including grilled onions, the chain's special sauce, tomato, lettuce, and more.
I thought the burgers were juicy and the pickles had a tart crunch to them. The bun was slightly underwhelming, but I thought it was an excellent, large burger with tons of flavor, especially for the low price. I also thought the mustard really came through and added a lot to the burger.