Went in for new alien card processing after i-751 approval. everything went well. got there at 7:05 for 7:15 appointment. there were two other people in line. We passed through the security and found out that we were not suppse to have pda (even the very basic organizer) with us and had to run back to car to store it. We waited for about 15 minutes till our number got called. handed the officer pictures, expired alien card, did right index finger print twice and singed twice. We were told we should have new card in hand in about 3 months or less. By the way, we got a stamp on the passport as well vaild for one year. The officer was very friendly. As we were leaving at 7:40am, there were more people coming in. The process was painless. it's a little bit harder fining the place, because the sign wasn't very clear.