I completed the MOST (NSW) course a few days ago and can now get my full liscence. I have had L's for just on 3 months.
I did the course on my yamaha majesty 400 - a big maxi. On the day I did it, 3 of the 6 in my group failed and one more lost 8 points (9 is a fail).
I did the course at Clyde, near paramatta (Sydney). They have courses 7 days a week and it is a relatively easy place to get a booking for a course because of this.
I went to the RTA website and found the information about the MOST test and practised the things that would be in the test - about 8 sessions of 30 - 40 minutes each. I also ride 200km each to work and home. In practise, I cut 4 tennis balls into halves and used them as markers for the drills shown in the MOST test info from the RTA.
On the course / test day, the most important thing was to listen to the instructor and concentrate all the time. I found that as I was listening and making an effort to participate, the instructor was more helpful to me (teachers love to teach people who want to learn - I am a teacher). In the end, although I was nervous, the test was not too hard.
1 guy who failed just did not follow the test instructions = instant fail / 1 guy didn't pay attention all day and the instructor asked him if he wanted to leave well before the test. He then knocked over some cones and failed the swerve test - probably as a result of not lostening all day. The third failure happened because the rider did lots of silly things on the road ride including riding with an undone helmet.
The guys who failed were genuinely unintelligent - not trying to be mean but they struggled to understand simple instructions.
The instructor was excellent, his instructions were very clear and he gave good advice on how to improve and ride safely.