I will start,
I applied for H&C last year on january by my own on best interest of a child ground.
7month later, without any AOR, I got a call from CIC to update my file and we talk for about 30mns about my application and familly. I receive AIP (Approval in principle) 1 day later.
Since the AIP I didn't ear any news from IRCC until january 2018, I received médical request and Annex A request. it's was all done by the end of january and my background still in progress.
and I still waiting....