I understand there are time limitations involved, especially if a faculty member or DCT wants to speak with a large number of applicants, but I really disliked the group interview format. At least at my program, the group interviews were limited to faculty members other than your POI. I also got lucky that I was the only applicant interviewing for my current mentor on that particular day. I think some people might find it a bit intense to have all the focus be on you, but I preferred that over the weirdly competitive environment of the group interviews. I get that it's supposed to be more collaborative and show how you relate to other people in such an environment, but so many applicants don't take it that way and get hyper competitive. I interviewed at one program where the faculty members were subtly encouraging this kind of competition, as well as doing some other odd things, so I almost instantly wrote them off and just relaxed and enjoyed the day and free food.