Our interview was at 8am. We had our baby with us, so we were ushered to the head of the line and got interviewed fairly quickly. My wife had a small blood clot from pinching the tip of her pinky in a door, so they were unable to take a print from that finger. Also, despite having been reassured by NVC that Police Check #1 would be accepted (due to our case having been completed prior to the Consulate's change of requirements), they gave my wife a blue slip and come back with Police Check #2. We did that and they issued the visa, so no big deal.