I’m currently half way through one, and finding it very patronising.
I got caught doing 70mph on a 60mph stretch (16% too fast). I did the course along with people caught doing 40mph in a 30mph stretch (33% too fast)!
Although I found it somewhat patronising, I couldn’t believe the level of ignorance of most of the fellow participants: On the video where you have to count the number of hazards, I was slightly low, and the next highest was half the number of hazards. Some saw just one or two! How are they allowed to drive FFS? 😯