Hi guys, to answer a few questions:
Afternoon interview slots have been ending around 3:00-3:30, but the school reserves the extra time in case it runs over with the morning slot or has a hard time finding replacement faculty interviewers, etc. To be safe I wouldn't book a flight out before 6:30 just to make sure you have plenty of time to get to the airport in case interviews are running late and you do have to stay until 4. Also, winter is coming, so I imagine traffic delays will only worsen during the next few months.
The school is clearly not vocal and firm about its dates for announcing interview results since the dates probably aren't set in stone and the school doesn't want to be held accountable to timelines it couldn't maintain. I would expect to hear back from the school about 2-4 weeks after interviewing, with possible delays due to the upcoming holidays. The Detroit area code is 313, so you'll simply have to become accustomed to hyperventilating every time your phone rings and every time you get an email notification. One of the many cruelties of this process.
Lastly, the school is not updating the admissions tracker as often as they should/could. I see it as a ballpark estimate and not a real time counter (which would be nice but somewhat of a commitment to maintain).
