My interview was really easy and fast. The consular officer just asked basic questions such as:
* When did you meet?
* Where did you meet?
* When did he propose?
* Where are you going to live there?
Then he said "Congratulations, your visa is approved! Good luck there!".
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P.s.: Even though the first appointment time is 7:20am, the consular officer only starts the interviews at 9:00, so be prepared to be there for a couple hours.