Went here for lunch with the boyfriend today, and I had a decent experience there.
Can't really comment on their style of customer service, since the cashier seemed to be just there when we ordered our food. Same goes for servers bringing your food to you. It was like going to a high end In-N-Out to me. Eh.
Decent food. I liked their regular fries 'cause they were cooked crispy. Found their stamped buns cute. Of course, I liked their Coffee Bean shake the most! Really took my time on that one, so I could finish it at work.
The boyfriend liked it enough too. We've already decided that if we have another random lunch date here... I'd try the Love & Seoul, and he'd get the Inferno.