I give this place 4 stars because this is about as authentic as it gets for Taiwanese and Chinese food. If you are here for American Chinese food, you will be disappointed.
My favorites are the eggplant and tofu, beef roll, and the beef noodle soup. The food is awesome and a great price. The drinks are alright too- pretty standard for boba.
If you come here looking for things you'd find at Panda Express, this place will not live up to your expectations, but for real authentic food, Taiwan food express is definitely the best in Mesa if not the whole valley. Also, the ladies running the place have been running the place for as long as I can remember and are super nice and willing to explain things on their menu. And don't be afraid of asking if you do not speak Chinese fluently. I don't believe that has ever been an issue here. ( I speak both Chinese and English but typically ask questions about the menu here in English)