I don't know about the authenticity of Zen (it's aiming for Japanese), but I do know I like it. The stir-fry bowls they offer are healthy, very satisfying and tasty. Also, I like the fact that they offer brown or white rice with all their dishes. I have had some friends comment that their sushi rolls are bad, but I like their spicy firecracker rolls. I recommend Zen to the hungr, health concious and budget concious.