This is a common question used to ask about:
* The general atmosphere of the class: Is it lively and interactive, or quiet and structured?
* The teaching style: Is the teacher strict or relaxed? Do they focus on grammar, conversation, or a mix of both?
* The difficulty of the class: Is it challenging, easy, or somewhere in between?
* The types of activities: Are there group projects, presentations, quizzes, or other activities?
* The other students: Are they friendly and helpful, or competitive and unwelcoming?
To give a good answer, you can talk about any of these aspects of the English class.