My Interview was taken by a couple of alums(One from the Co'16) while the adcom member was muted and his video was off.
It started off with the round of introductions and then the following questions were asked -
1. I was asked couple of questions on my background and the work i've done so far
2. Asked me about a challenge i had to face
3. Why MBA
4. Why not an Online Course from Coursera?
5. Since i come from consulting and have had a good career until now, why am i not pursuing strategy consulting instead of PM?
6. Why ISB?
7. How can i contribute to ISB?
Overall it was very conversational like all the other interviews and the panel was really warm. I did take a mock with preppie and got some really good insights. I took a couple of days to work on all the feedback provided and it really helped me prepare for the D-day and give my best. I would highly recommend you give it a try as you only get one shot at the ISB Interview and they'll help you cover all the angles possible.
Background -GMAT 730, Consulting - WE 60 Months