Took much too long and the objectives were confused due to the management misunderstanding the consultant who advised in the formation of the interview process.
The description of the job was wildly inaccurate - it was apparent from day one that the job I'd got for was very different to the one they had described in the interview.
Managers openly say they aim to "break" the candidate to see how they react. If they can't break them , they don't want them.
One final little niggle: managers hadn't even glanced at my CV before starting a 90 minute final panel interview.