Generally speaking, it's not bad. Although Ershi is poorly evaluated by the outside world, there is nothing wrong with it except a little more homework, and the food is good.
If you don't resist a lot of topics, you can consider going to Ershi. After all, the atmosphere there is very good and the quality of teachers and students is relatively high. However, it must be pointed out that most students who go out from Ershi have achieved quite good results in the senior high school entrance examination, but after entering high school, if the teachers don't keep an eye on it, they will give themselves a holiday and their grades will plummet. So you should also have good self-control.
I hope it helps you.