Really easy and enjoyable. Your interviewees are either HR employees or the Head of HR but it felt more of a chat then a test. It mainly included a review of my CV in quite a bit of detail and a few questions about why you want to work there.

After my initial application, I was invited to have a 15 minute video interview with two HR managers. After brief introductions, they went through the list of questions one by one. I believe they did all the interviews over a period of two days.