I dine here frequently, mostly when visitors are in town. Their burgers are consistently delicious, for lunch and dinner. Now, here's the critique that you need to pay attention to. I have twice dined here after 8pm. In comparison with the lunch crew, here are the differences:
1) Service is still good, but it's not as quick as the fully staffed lunch crew.
2) The food tends to be more salty during the evenings. I'm not sure if this is their intention for you to purchase more beer or a matter of preference by the kitchen. Compare the ramen and definitely the oxtail fries.