We entered the building 10 minutes before the appointment time. After airport style security we went to check in and then seated for approx. 20' while waiting for our number to be called.
When we were called an officer took us to her office and the interview started. She was very nice and friendly. Asked us a few questions about biographic information, looked at the medical exam taken abroad for the K1 visa interview and after reviewing some information on her computer she told us we were approved for a conditional card (meaning it will be valid for 2 years and that we will have to apply for removal of conditions 90 days before the expiration of the card). We received the approval letter in a week and the card a few days after.