AOS based on marriage to USC
My timeline:
15th Nov: Package received by USCIS
18th Dec: Biometrics appointment
Same day: Status changes to 'Case actively under review'
March 25: Courtesy letter generated for informing requirement of I693
April 20: Interview scheduled for May 19th
May 19: Interview went well, but got RFE for I-693 that the doctor didn't fill completely
Replied to RFE with new medical form within a week
June 13th: Case approved
June 21: Received green card in mail!
Good luck to everyone!