For an entry level coordinator role I did 6 rounds with 8 interviews and 1 assignment. Lengthy, but nice people. Prior to the 8th round, I was told I would get an offer after the interview if it went well. In the final round they asked me “who my referral was, and that they were asking me this for a reason”. I told them who it was, and they didn’t know who they were. The following day I got a call telling me that they were going with someone else and that it had been a toss up.