Had my consulate interview last week (5/Sep/17). Despite some of the poor reviews here, I found all staff, from the first person who checked my documents in the lobby to the security staff and finally the embassy interviewers all very professional, friendly and helpful. The questions were straightforward and consistent...3 people ahead of me, and myself were all asked the same basic questions:
1. How did you meet
2. How did your relationship develop
3. What do you intend to do for work in the US
4. Where do you intend to live
There were no "gotcha" questions and any required clarification was sought before moving onto the next question. There was one lady ahead of me with poor English and the staff member was patient and explained things clearly until the lady understood what documents she had to provide before being granted her visa.
I did have one issue where I was unable to obtain a police certificate and after explaining the situation, the consular officer informed me she would contact the relevant embassy for me.
All in all, positive experience.