In reply to Donotello:
I've done a speed awareness course, and given it was 25+ years since I took my test, it was a very useful refresher (I don't think I've looked at the High Way Code very much since I did my test either, so even more useful). No big stick, and very supportive atmosphere on the course, and very mixed "audience" of attendees!
Things to bear in mind about doing the course:
1. You don't get the points, but you have to pay the course fee (which is "similar" amount to the fine)
2. When I did the course, it was stated that we didn't need to tell the motor insurance copmany, but this is changing.... see e.g.
https://www.theguardian.com/money/2017/aug/21/admiral-car-insurance-speed-a...
3. I can't find the reference for this, but I seem to recall reading something at the time that if I get another speeding camera ticket within 3 years of the course, there will be no chance of another offer of an awareness course, so you get to drive very carefully for 3 years after the course. I also remember meeting someone on the course I did that said it had been his second course (I didn't ask him how far apart they were time-wise).