Simple but complex. There is a few things which can catch you up so you need to be on your toes. It's clear they look for clarity and calmness as they present huge amounts of information during a short period of time. Just pick out key bits and don't worry about the jargon. The interview was nice however, one of the panelist had to leave early due to an issue else where. Could be quite distracting if your head wasn't in the right place.