I have completed my interview today. However, I am not very confident on the result.... For those who also receive an interview invitation from IESE, you may find the below information very useful. http://www.clearadmit.com/wiki/index.php?title=IeseInterview
I've read some interview experience posted on the internet through your link. It seems that your feeling is quite normal and stating your idea and experience in a continous way is all we can do in the interview.
Finally, I confirmed the VC interview tomorrow morning and will have to get up at 4:30 and drive 2.5 hs.