I have seen a few baseball teams staying at this hotel. If I remember correctly, there was a baseball player passed away at this hotel. If you stay here when there is a team staying, your chance of getting upgrade is slim.
It's a great location. If you get upgraded, the two room suite is huge. If not, the room is small, but typcial in Michaigan Ave. I stayed at Drake next door (more expnesive hotel) and didn't get much bigger room (as a Hilton Diamond) than Westin.