I applied early April and got my first lot of notes in August. For $5, it was ok. The officer that goes through the file in Mississauga can highlight to the officer in Accra if they think you will need an interview. Mine didn't indicate anything like that. Of course that can change as the Accra officer may see things differently, but it makes me feel a little better I guess for now. And I applied almost a year ago so things may start to speed up as they get through the backlog so what I saw at 4 months back then may be different to where they are at now.
I have done it again now cos it takes a month to receive the notes. I haven't heard anything when others that applied around the same time have. So I want to know why we haven't, and IF we get called for an interview, I want to know what they are concerned about.
You can order multiple times. You need a form signed by the applicant giving the sponsor permission though. There is a thread about that too...how to order your notes.