To tell the truth, each institution has its own teachers, resources and characteristics. Large institutions and small institutions are not at the same level and cannot be compared. You can't say which is good, only which training class suits you. Personal newspaper's physical examination: 1, big brands, many resources: big brands have their own unique and high-quality teachers, R&D team, rich teaching resources, and are not afraid of paying money, finding someone, closing down or running away. 2, cost-effective, suitable for yourself, if you can't afford tuition, or you can't spend money in vain, it is quite a loss. Like me, I was afraid of failing the exam, but I was even more afraid of wasting money, so I chose the class I didn't take.