Unprofessional in the sense that 1) the interviewer really didn't come prepared and 2) the interviewer was confrontational and generally unpleasant.
You're right that I can't expect every single student to be "top notch", but I what I can't understand is why the school doesn't stress a greater emphasis on providing a more consistent admissions experience to prospective students - i.e. better info sessions and better interviewer's training.
I really feel that it's a two-way street - interviewers and student admissions reps are ambassadors for the school and they are "courting" top candidates as much as candidates are courting the schools. Leaving a less than stellar impression on prospective candidates doesn't do anything for the school.
I don't know if everyone got this impression at UCLA or it was just me, but from my visits to Booth, Kellogg, USC, Tepper, etc., those schools really welcomed you. I have to especially give a lot of credit to the Tepper School - I mean they really rolled out the red carpet for prospective students - small group tours, free lunch, 1:1 Q&A. At UCLA, I had mediocre experiences at 2 info sessions + my interview. Anyways, just my 2 cents.
Edited 5/15/09 by jeepers172