the process started with cv and cover letter submission which was then followed by a informal chat / interview via phonecall. Another interview was then held face to face which is said to last 90 minutes.

Very quick and efficient. The final interview process was long and took the entire day and included a 45 minute presentation that I prepared. This was followed by back to back 1-1 or 2-1 interviews for the rest of the day, each lasting from 30 - 60 minutes long. It was a very intense process.