I'm certainly no expert on Ethiopian food, but I have eaten at a couple Ethiopian places and the food at nunu was the best I've had. I went with four friends for a celebratory diner. We shared a meat and veggie combo and the food was excellent! Some piles of stuff were spicy and some were not as spicy and all were completely wonderful.
The only thing that would have improved our experience was a more... involved? server. Our server was pleasant, certainly, and fulfilled the necessary steps of service, but the experience would have been improved if she had, for example, taken the time to explain each of the wonderful piles on the platter of food.
We had the Ethiopian coffee service to finish the meal and it was the perfect finale. We loved the ceremony and the smell of the frankincense almost as much as the thick, rich coffee. I'd go back in an instant.