I just submitted the video essay. Both were straightforward as stated by
abhimahna here. Mostly related to professional struggle and how did you overcome the issues you faced.
I would suggest listing 3-4 issues you faced professionally and practice them. I had questions about issues I faced in career and how did I handle it. And some general questions about the business relationship.
As stated by abhimahna here- They test your impromptu skills in speaking, decision making and how well you respond in a timed manner to a direct question.
Below are my suggestions.
1. Look Confidence.
2. Look at the Webcam instead of your video. So that you are looking at the person who would be watching the video.
3. Smile- time to time. And be casual as you are speaking to a friend over skype.
I know it is only 1 min 30 secs. But it is a lot of time in term of impromptu speaking when you know what you need to speak.
All the best!
Hope they call us for the interview. Since the program is very selective due to the class size.
P.S- I just sent my official score to the school. Hope it would reach by the end by week.