I submitted my application on oct 21, got conditional approval 3 days after on oct 24. Booked the nearest available date to me (i live in irvine,CA) which was nov 12 at Long Beach. Found out last night that there was an openning today Nov 2. Went ahead and rescheduled. Officer and i took less than 10min.
checked my email after 3hrs and all good.
goodluck everyone. Just keep checking the sites people usually cancel the night before their interview so i would suggest if you have a free day. Check the night before.