What is your overall impression of the interviewer after the interview?

This question is subjective and depends on the specific experience. Usually, it is best to give an honest and constructive feedback, for example:

• The interviewer was polite and professional.
• The questions were relevant and helped reveal my knowledge.
• The atmosphere was comfortable, which facilitated open communication.

If there were difficulties, you can gently point out areas for improvement, such as lack of time for discussion or too fast a pace.

Such an answer demonstrates your communication skills and ability to give feedback.