I love their burgers. As far as fast food burger joints go, they're one of the absolute best in the Pittsburgh region. They're very consistent from restaurant to restaurant as well.
Their toppings are free and always fresh in my experience. I typically go with lettuce, tomato, pickle, grilled onion, and ketchup/mustard. Fries are also great and I love that they typically have vinegar available.
My biggest gripe? Price. I always order the "little" cheeseburger and "little" fry which basically means one party in the burger and the smallest fry available. Yet, when I do it costs $12.50 for a meal with a drink. I can basically eat at BRGR or Burgatory for this price. Ideally they would come up with a combo meal so that fries/drink do t add $5-6 to your order.