Is it expensive to stay in Shenzhen B&B 400 yuan for one night?

This is not expensive. In the Mid-Autumn Festival season, staying in Shenzhen, 400 yuan should be a relatively high-quality hotel for one night, but if you want to find a very cheap one, it is estimated to cost more than 300 yuan. After all, it is the peak season, and this is the price of hotels and high-priced hotels when they are almost the same. However, I have seen many cost-effective hotels in the Wooden Bird Hotel before, and you can also look for them.