after receiving my conditional approval for renewal i was unable to find a location that worked with my next six months worth of travel. Fortunately i had an international trip scheduled so i used the Interview on arrival option at LAX. it was a TWO hour wait in a slow moving line (most movement was from people giving up and leaving the queue). They repeated announced recommendation to use zoom. I tried to book zoom several times including while i was waiting in line, gave up after finding no availability for the next FIFTEEN years. Complained to agent when i had my interview, he said that he thought only Ontario California does the zoom interviews and only when they have free time