definitely a good idea to go on a refresher lesson before the exam, if you're unsure of any bad habits.
My Class 5 was by far the easiest thing ever, and i did in a manual.
Just basic city driving, mostly side streets though. did a couple playground zones (she made me do that twice because i went about 32km/h and she couldn't see the speedo the first time, so i got lucky on that), and merge onto the upper levels hwy for one exit and back off. Make sure you follow the highway off-ramp speed limit sign, "EXIT __km/h". The pull-in parking was hilarious; the entire block was empty except for one car at the end, and she told me to pull in behind them.

Yep, I did mine in a standard as well.

With a standard at least there are certain things you need to watch out for, like leaving your car in 1st with clutch pressed down instead neutral and clutch out, as well as not blipping the throttle too hard when downshifting. With an automatic, these are non-issues.

When I did the exam it was a rainy day, so all the cars in highway was just slow anyway. I just followed behind this RX-8 at a good distance at about 70 km/h(speed limit is 80 km/h) for a while before getting off. Goes without saying, but don't attempt to pass anyone on the highway if they are driving slightly below the limit.

Otherwise, with a refresher, it's a walk in the park.

guess it depends on the vehicle but revmatching in a road test??

if you ever have to downshift in the test you're likely under 20km/h...at which point revs are already very low even going to 2nd