Went to visit Stern yesterday. Totally had fun! People are nice and friendly and very helpful. Met both with current Chinese students (Thank you for your time Sunny!!) and current American students who showed us around the campus (well, just one building). Sat in a marketing class and at the info session. About the interview, they said "some" people from 2nd round will be invited for off-campus interview, but no guarantee on the percentage. Meaning: you still have a chance! Hope it helps.
I don't know whether it is advisable... should I request the school to put me in R1 (deadlinez: Nov.15)? though I am 10 days late than R1. I've heard there are people granted with early round even though they are 14 days late than R2 deadline...