Had mine on Oct 17. Interview was smooth and straightforward. My wife interviewed after me the same day but with different officer. Hers was easy as well. each lasted about 20min. We were congratulated and received a paper from the interviewers that everything is good, we passed and we will receive a approval soon and instructions for oath to follow in the mail. My wife already received her invitation it will be later this week. I did not receive mine unfortunately. I called USCIS and