Guys!
I am super happy to share great news with you!
I am August 25 applicant (2017), my VO was Warsaw. Finally received DM on April 27 and PPR on May 9.
In total 8,5 months, which is shorter than we expected. Background check went 'in process' on February 8, therefore it took them around 3 months to complete it. In meanwhile we requested GCMS notes (beginning of march), but never received them.
Throughout the whole process no requests for additional docs, nothing, even though I was expecting as I lived in 4 countries for more than 6 months and had to provide 4 police reports (including USA - the longest). Also extensive travel history.
Best of luck to all applicants and happy meetings with your loved ones to those who got visas.
P.S. All info in my signature. Feel free to ask me any questions