If you go in expecting airport food, you won't be impressed, but you shouldn't be too disappointed.
I've stopped by for lunch, and the pesto pasta salad is quite good. In the morning, my latte is passable. I wouldn't recommend the bagel, but on the other hand, it was more reasonably priced than the quiche or other breakfast foods. The girls at the counter are friendly, but service is very slow. The signage isn't clear as to where you line up to order what, so that definitely contributes to the confusion.
There's better options to be had in this airport, but Nature's Kitchen works in a pinch or if you don't want to go to one of the sit-down spots.