Adjustment of Status - I-485

I filed for GC (I 130, I485, I 765, I 131) through marriage to USC. I am an Indian citizen, and currently on H1B. Underneath is my timeline (all dates are in MM/DD/YYYY):

PD: 12/5/2016 (Filed to Chicago Lockbox, case transferred to NBC)
Biometrics Done: 1/12/2017
EAD & AP Approved: 3/21/2017
EAD & AP Combo card Received: 4/5/2017

The USCIS case tracker for I485 is not showing anything regarding the AOS interview, and still shows the initial status of, " Finger printing Fee was received". My questions to the group:

1. Does anyone have any experience with the Indianapolis field office lately? Based on USCIS website info, as of 1/31/2017, they are still processing I 485 cases of 8/9/2016. But based on the information shared on this forum, several other folks at different field offices appeared for AOS intierviews recently, even when the USCIS website shows that their field offices are processing cases earlier than their PD.

2. How is the interview location/field office determined? I remember the location for Adjustment of Status being asked in I130 (item # 22). Do they always transfer the case to same field office as requested in I130?

3. Can the location for Biometrics and AOS interview be different (I mean in different cities)?

4. Does anyone in the group have a similar timeline (regardless of the field office), and have had their GC interview completed?

Thanks,