Bad news, guys. It was totally a waste of time to go there. Spend 3 hours in INS and was not even allowed to see or talk to my case's officer. I have been told to "come back if hear nothing in one year"
I'm afraid I have to go back there to renew my EAD card next month (never thought that).
What's happend? Why so many people having AOS interview after mine go their GC stamps instantly