kastino
Applied round 3. A few days ago, I got a mail concerning having a chat with current students. I believe the mail is more appropriate for those applying for the final round even though though it is open to all "wherever you find yourself in the admissions proces". Honestly, I see no sense in having a chat at this point, and it feels unusual. The only chat that makes sense at this point is an interview.
Have you visited campus or participated in a chat with students previously? These schools want to interview candidates that are both serious about attending and those who will mesh with the existing community -- Goizueta is a smaller program and they are very tight-knit as a result. If you haven't done so, you should definitely engage in a chat and develop a stronger understanding of the school. If you have, I would still recommend interacting with them as you'll probably learn something new (e.g. impact 360 case examples). Asking informed questions to the students and any adcom members present is a good way for you to help establish YOUR brand as well as learn about that of the program.
When I applied to goizueta in r2 I hadn't visited the program. Just after submitting my app, I saw they were having an event to meet current students and alumni in my city. I signed up because there are few better ways to learn about a student body than firsthand interaction, short of visiting campus. They contacted me with an interview invitation shortly after registering for this event, noting that they would be visiting DC and it could be a convenient time to interview. Who knows if I would have received an invitation had I not signed up?
I think r3 is more competitive than R1 and R2 in general, but given how few means there are to control your destiny at this point in time, I would highly recommend making the most of them.