I've received the PPR by email last night
Checking my status in the CIC system this morning and it is still of "We are processing your background check"
My time line is listed below:
March 14, 2016 AOT
March, 2017 Medical Request received
Sept, 9 2017 Status changed to "We are processing your background check"
Nov 14, 2017 PPR received by email
Note: I'm the main applicant, and my wife is a dependent applicant initially.
She lived in UK for 2 years back to 10 years ago, I'm thinking that's why our background check had been so slow.