The interview was around an hour long. In the first half an hour I did a group assessment with 2 other people, both the people I was with had already worked in waitrose before so it was a bit difficult. Always try and speak up so that you can be assessed, but don't try and be that person who tries too hard and does all the speaking because it isn't really fair and they're trying to see how well you work as a team. After this I had an individual interview and the questions were very easy, just general questions about things I had done already.