Never been through it, but got major wierd vibes when I interviewed there myself, ended up not ranking them.
Basically the residents were WAY too pushy about their program. One was trying to sell me his house. I was the only interviewee that day, and the PD didn’t ask me at all about myself or app. Just said “I only interview people I intend to rank in a match position, so I’m going to take the next hour and try to convince you that you want to be here”. Felt a little “used car salesman” to me.
But others seem to have liked it, so maybe my instincts were wrong.