Is Jining New Wu Dalang Frequency Conversion Cooking Machine a lie? How is the quality of the machine?

The converter baking machine in Wu Dalang, Jining is a lie. Although the price is low, the quality is poor. I bought cookies from Wu Dalang. It always makes mistakes. I could have called them to fix it at first, but something went wrong again in a couple of days. Later, I called them and no one came to fix it. The baked cookies not only taste bad, but also look ugly. I advise those who want to do this business not to buy the converter baking machine in Wu Dalang, Jining, just to do it again.