No matter what kind of shifts, the pass rate is very random. It can only be said that agreement classes usually arrange better teachers, compared with high placement classes. For example, as long as he earns the fee of 10 thousand yuan, even if three out of five people pass and two don't return the fee, he will make more money than high school. Therefore, the teachers in the agreement class will try their best to improve you. The money in the high class is stable and the pressure on the teachers is small. In fact, the difference between these two classes is that they take different risks. Anyway, the agreement class is a full refund and there is no risk at all.
This is my suggestion. The specific decision still depends on your own situation. I hope it will help you in your choice.