My experience in columbus, ohio
My timeline:
eb3, priority date June 2002
RFE on 485 for self March 2005, spouse a couple of weeks later.
Replied to RFE beginning of May. Received notice on June 8 that our case was transferred to Cincinnati, Ohio
Made infopass appointment to visit Columbus and was told that Cincinnati was the office that received files from the service center and that Cincinnati would forward the files to Columbus.
Rajiv Khanna Law offices is a very professional unit of people who help you right on the point. The best service and clear distinction offered by them stands in the way they present the case as it is and also with the right kind of knowledge in the limited amount of time available to make a decision. I am grateful for their truthful advise on my travel during H1B approval.