Sure--It feels like it might be an open secret at this point! I'd been warned of tokenism by one of my POIs at another school (who had actually gone to Michigan), and it was also evident upon meeting the cohort and faculty. The admitted student group was not very diverse and neither were the current students or the faculty; as a POC it felt like I would struggle to find a place in the department, and this was emphasized when they had a separate diversity panel. (I appreciate that they are putting in effort to making sure everyone's voices are heard, but it felt segregationist and forced.)
In my own personal experience, I had a bad encounter with a POI. I also heard secondhand from another POC admit who experienced something similar. Some of the students talked about having to lodge a formal complaint against a racist professor the previous semester, too. The visit was only two days, so I can hardly imagine spending five or six years there.
That said, this is really only my own personal experience and I don't want to dissuade anyone from going there or applying in the future. It really is a very strong program, and the current students that I met there were very welcoming and seemed happy (including the ones who needed to lodge a formal complaint!).