My observations over a good couple of airlines (with Wizz NOT being one of them) suggest the same. The interview setup depends on what kind of workforce you're aiming for. If you want submissive people who can be easily manipulated and will never question anything they are ordered by the top dog, set up an interview led by someone big-headed and arrogant who will act as if he's invented aviation and hire those who will swallow all their pride and dignity, freak out at the first frown and behave as though their life was dependent on it. If you want friendly and honest people who will all be in this together instead of playing a game of superiors and subordinates - make it as informal as you (appropriately) can, stimulating people to relax and show their true selves.
Back to the topic, has anyone done the new psychological assessment? What's it like?