I've only eaten here a few times. Each time service has been slow. I will never know why. It could be the kitchen got back up with orders, or maybe the waiters/waitresses put priority over other people for different reasons.
I try to come here when it's not "rush hour." Judging from people reviews they are slammed during rush hour which makes me believe the owners don't hire enough people.
The food is good. I will comment the food is very good but to be honest it's easily strip prices for very simple food. I didn't know this restaurant was on diners drive ins and dives. I came here to try it because I live pretty close. Which in my opinion is overrated.
While the menu is different (Kalbi burger, truffle fries, wagyu burger, etc) I feel you can pay similar prices by actually going to an Asian restaurant and eat the actual food the burger is inspired by.
This isn't a place I would go for burgers unless you want some fusion burgers.