Two key points:
1. Lunch: cheaper, laid-back
2. French fries with garlic aioli: fatty deliciousness (You must ask for the aioli.)
They have a decent lunch, though I really just go for the french fries. Other lunch food worthwhile: tomato bisque, chicken salad wrap, and grilled cheese. I was never in a burger mood when there, but I see a lot of people ordering it.
Service here often becomes great fodder for conversation afterward. I mean, there was a waitress who was super perky and nodded vigorously whenever I asked for something--to then come back happily each time, completely forgetting that I asked for anything at all. I forced a friend to steal sugar from tables because of her. And another waiter who ran around in a rush as if someone was holding a gun to him and ordering him to drop those checks off, stat.