No matter which one is chosen, the evaluation of the two training institutions, Mei Cheng and Master Cheng, is both good and bad, mainly depending on their own foundation and self-discipline. They have a good foundation and can teach themselves without weak subjects. If you have poor self-discipline and weak subjects, you can sign up for a face-to-face class and let the teacher supervise yourself. At the same time, I suggest you make a field trip, and what suits you is the most effective.
No matter what you choose, it is a good choice to choose the road of upgrading from college to undergraduate course and start early. I also wish you success in the exam.