Waitrose interview questions

After completing several online tests I got an interview in their London human resources office. Firstly, I had a one-to-one interview. The person interviewing me was very nice, making me feel confident. Then we had a group assessment during which we had to debate about some customers review and see how we coud do solve the problems. This was pretty easy, I believe the main point of the interview was to see who would be confident enough to speak and animate the debate while making relevant observations. This was a good experience overall. After the interview, the other successful candidates and I had to attend a paid one week formation which was pretty fun as well.

Phone interview for around an hour with the HR manager followed by a 1hour one to one with the COO of the company. I was given the decision a week afterwards.