Impressions or thoughts formed after seeing or reading something; often used in reports or business contexts.
会議の最後に各自の所感を述べてください。
Please state your impressions at the end of the meeting.
講演を聞いた所感を簡潔にまとめた。
I summarized my impressions of the lecture briefly.
ご所感をお聞かせいただけますか（丁寧表現）。
Could you share your impressions? (polite)