I was first contacted by email. I responded quickly, and the position's incumbent took a little while to get back to me with a confirmation.
The interview was not really an interview. It was two questions posed to me (a question and a followup), and then the incumbent talked about her own accomplishments for 30 minutes. She spoke very quickly, almost incomprehensibly, and judging by what she spoke about, she seemed more preoccupied with her own achievements and future than either how my qualifications could fit that role or even the job itself. It was a waste of time, and her behavior negatively reflected on IPA.
After the interview, I sent a "thanks but no thanks" note.