Whilst looking like a standard Chinese restaurant like 1 gazillion others, the real deals are to be found off the menu, except for the tasty noodle soups:

Go for some genuine Taiwan styled Gun Bao (extremely hot due to - uncounted - 50+ chillies burnt to death).

Or choose the Li-Du's prime dish: noodle soup (with pork, duck or just veggies. Recently, a spicy beef soup has been added to the range of soups; just take a look at numbers 91 et sequ on the menu).

Or be brave and choose to just ask for the recommendation of the Li-Du's chief-waitress.