USCIS Processing Time as of 01/11/2017
USCIS generally process cases in the order they receive them. The link below provides you an estimate of how much time the office handling your case currently takes to process your type of application, petition, or request.
I got my Immigrant Visa thru Consular Processing on August 2000. Law Offices of Rajiv Khanna helped me through the process. His staff were generally helpful and knowledgeable. Among other things one I most appreciated was the fact Rajiv made time to reply every e-mail queries I sent and return every phone messages I left. That was re-assuring during various stages of the process. I will certainly refer them to anyone who wants immigration/non-immigration services.