We filed an I-751 petition with USCIS on 3/24/2017 and received the approval notice on 12/10/2018.
USCIS Filing Date: 3/24/2017
Biometrics Appointment Notice: 4/20/2017
18 Month Extension Receipt: 8/27/2018
USCIS Approval Date: 12/10/2018
USCIS #: WAC1718700013
Source: h1b now
