I think the reason everyone's saying the recipe is bland is because it doesn't ask you to marinate the tofu. I chopped it into cubes and marinated it in soy sauce; pineapple and orange juice; mirin; some of the 5-spice powder; and salt for about 5 hours. I also used the sesame oil in the end. It turned out great! I definitely want to make this again!
Ali, Auburn, AL