I had 2 group tasks, 1 competency interview, 1 "fact finding mission", 1 in-tray exercise and 1 maths test. The interviewers were very rude during the group exercises by interjecting our presentation and they told us they were "very disappointed" when we had just started feedback. They also made me feel very uncomfortable in the competency interview and their attitude and behaviour towards the group of us candidates put me off the company after a few hours.
A good experience for a wide range of test types but I wouldn't call it a friendly and welcoming company.