First, search the company's website on Baidu. The website made by the website is very comfortable
Second, look at the reputation of training institutions in the industry. A good reputation means that students think highly of the institution.
Third, look at the historical period of the organization. After a long time, it shows that it has certain strength, otherwise it is impossible to survive.
Fourth, look at the teaching methods of this institution. You can choose a course you are familiar with first to see if it is clear and easy to understand.
Fifth, look at the teaching environment. For example: audio equipment, whether the students are noisy.
Remarks: You can also think for yourself and consider from other aspects. If it helps you, remember to adopt it.