I did my M2 exit course last summer at centennial (astonbee) I think it's pretty much the same as all the other courses (should you choose to go that route) the instructors/examiners are all riders themselves, so they won't nitpick about stupid little things, so long as they can tell you are a decent rider.
Ask all the questions you can before you go on the test. FYI, the group ride you do before hand is almost exactly the same to the route they'll take you when you do your test, so make a note of where schools, churches, motorcycle hangouts(???) are so you don't get dinged for not being aware of your situation.
Me, I passed with 3 marks against me. The first one was for improper lane position on the on-ramp to the 401, which I suspect they gave to me partly because at that point I had a perfect score, and as a rule, I don't think they give perfect scores. My instructor even told me it was sort of iffy, and not really a bad thing - the painted lines were all worn off, but he had to mark it down.
The second was I forgot to signal when I got off the highway. I was in the right-hand lane, and technically I didn't cross a dashed line when I got off, but again, not something I'd worry about too much.
Finally the last one is that I didn't turn my head to make myself aware of the parking lot at Elements. This one was the really stupid one. I was in the right-most lane east-bound on Lawrence, it was 11am on a Sunday morning, and it never even occurred to me that somebody might even be at Elements at that time, let alone all the dangerous squids who might have come flying out at me across 6 lanes of traffic at right at me. LOL.
I didn't contest it, since I already had such a good score to begin with, but it did raise my eyebrows a bit. Actually I think they just needed to make sure I didn't get a completely perfect score. After the test, I got a compliment from Kevin (the head instructor for the mc course at centennial) on what a smooth rider I was.
In hindsight, I'm pretty sure that I was an experienced enough rider at the time to have been able to pass a ministry test on my own, but taking the course was reassuring, especially to find out many of the habits I'd started were exactly what they were looking for.