Yes we rescheduled our AOS interview. It was not difficult. We were rescheduled for another appointment right away and within a few weeks of our original appointment. When we got to the interview and I attempted to apologize for rescheduling the IO stopped me, waved his hand in the air, and said "no big deal". We were approved the next day. Our field office was Cleveland.
Someone very recently posted a topic on this same issue. You can use the search tool to find that thread and see the responses.
