HRNS is a bit hard to find since it's off the beaten path on the outskirts of Hilo town. They serve Vietnamese and Chinese foods that are, when at their best, divine. Using mostly local ingredients the kitchen turns out excellent Pho (my favorite is the Pho Ga, or Chicken Noodle Soup) and garlic spinach, among other specialities.
The ambience and service is local, which in Hilo means nothing to write home about, but it is serviceable.
The problem is that the things the kitchen turns out are not consistent in size, quality and sometimes, flavor. They have the ability to cook great dishes, but do not always do so.
They are usually very busy at lunchtime, so get there during off-hours for best experience.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.