I got my passport stamped in Milwaukee.
Yes you check the status on the same website using your 485 reciept number. A friend at work ( same company and also through VSC) got his stamped two weeks before me and is still waiting , though his wife did get hers before I got mine.
I know it doesn't make sense, just passing on the information.
I don't know if it made a difference but I did register on the USCIS site after I stamped - that does give you a little more information ( it gives you a last updated date even if the message doesn't change )
Good luck to you both.