The concept is kind of fun; confronting celebrities with the interviewer's preconceived notions about him/her is slightly more original than a classic interview situation. And funnier. (Arguably, it might actually be more fun for the interviewee than for the listener but at least someone is having a laugh..!)
It is also somewhat more shallow, since no time is given to really delve into anything.
Plus, interviewer Persson asks a lot less follow-up questions than I would have.