I signed up for Suntech, but Chinese language and literature is only a tuition-free class. It is not recommended to report Suntech as a pit, but some teachers in it do teach well. Pay more than 7000 when signing up. Later courses will be overdue. If it expires, you can't watch it. They ask you to renew the fee or download a software to watch it again. But a year or so, the app shows that your course has expired and you can renew it. You can't attend classes without renewing the fee. Now the renewal fee is one year 1.599 yuan, and it will cost more than 3,000 yuan in two years. Plus the original registration fee of more than 10 thousand.