Everything went great! They were friendly and the waiting time takes the longest!
My appointment was at 930 am and we got there at 830. Took a short time till we were up on the 19th floor and then we had to just sit and wait till my number was called. First you go to a counter to give original documents and answer a few questions and then sit and wait till you got called again for the interview. By about 1045 I was done and ready to head out. Very exciting!