My I-485 application had a simple RFE (they wanted me to send photocopy of my expired passport). The Vermont office received my on September 28, 2016. They updated the status saying that they received the RFE response.
Does anyone here know how long it usually takes for them to process a simple RFE response? It has been 5 weeks since they received the response. I've heard that some people had their RFE response reviewed within days.