Congrats to all of those getting interview invites! Based on my very unscientific observations from round 1, timing of interview isn't related to the date you submitted your app or your chances of acceptance. I submitted about 5 minutes before the deadline and got my interview invite in the first wave, whereas others submitted much earlier and got later invites.
Also, for those of you undecided about Super Saturday, I can say that I enjoyed the experience and it increased my desire to attend Ross. It was great meeting admissions committee members, current students, and especially perspective students. Gave me a good feel about the type of people that attend Ross (or at least are interested in attending Ross) and gave you an idea about fit. Interviewing with a second year student was also nice. If you can afford it and have the time, I'd recommend attending (although the one I went to wasn't geared towards women).
Best of luck to everybody and maybe I'll being seeing some of you at Ross next year!