Here are some info for all of you January 2018 Filers!
I know this will help you a little bit so you can have an idea on the dates.
Jan 26th: Mailed I-129F
Jan 29th NOA1
Feb 2nd: rcvd txt and email case received
Feb 2nd: Check Cashed
Feb 9th: rcvd hard copy of NOA1
Aug. 28th Notified of RFE being mailed
Sept. 1st received hard copy of RFE in the mail
Sept. 4th mailed response to RFE
Sept. 10th received txt that my response to RFE was received