Citizenship

8/1 - Sent App
8/5 - Received date
8/25 - Completed BioMetrics
3/14 - Original Interview Date
3/17 - Re-scheduled Interview Date because of the snow storm
3/17 - Same day oath (Mount Laurel,NJ)

The process was long, but the senior office during the oath explained that it was because of the coming election everyone rushed and they got pretty backed up and really appologize. There were 27 of us in during the oath. Also it was nice of them to call us the day before the snow storm and rescheduled our appointment. My dad's interview took 40 mins mine took about 20 mins, some was inside for about 1 hr, we were there early so I was timing a few folks. 6 straight correct questions and you're done, you will write something in a paper that the officer will tell you. Dress properly. Also I'm sure to find out if your office to same day oath check the USCIS specific office

Special Note: I have an expire green card when I applied

You can file n-400 with an expired green card. But the requirement below you should follow

1. You are not a conditional resident
2. You did not go out of country when your greencard expired

Hope this helps