Quick four stage process: (1) 20 min HR/recruitment call. (2) Then half hour call with Head of department. (3) Next round was a F2F interview with Head of and business lead. (4) Final stage interview was 45 mins with senior business manager.
Recruitment agent was incredibly pleasant and informative throughout. All interviewers were engaged and asked challenging, probing questions. But as interviews were relatively short, it was difficult to get in some of my own questions.
All done in three weeks, however the very quick turnaround (final interview was held the day after confirmation at 8am) did slightly hamper my ability to prepare as thoroughly as I would have liked.
Generally a very positive interview experience, if a disappointing outcome from a personal perspective.