Did mine last year so I could tow the larger boats/trailers.
As said above, really good course, had a day's training, then a bit before the test the next day.
Thankfully, I found the reversing bit the easy bit (as Ive maneovered trailers for years), just found the 'test standard' driving the hardest to get back into - damn bad habits
Test is basically:
At test station:
15 min (or so)
reversing exercise - basically big rectangle - start in bottom right, unhitch, pull forward, reverse & rehitch, then pull forward into top right corder, then reverse trailer to bottom left corner (pretend garage) without crossing the lines marking the outside of the box - must stop rear of trailer within a 6 inch variance (i.e. wall) and be straight in 'garage' - you can have two shunts (pull forwards) during the exercise and you can only get out once to see how close you are to the 6 inch variance
Emergency stop at test station
On the road:
30-40 min driving punctuated by a couple of 'please pull in at the earliest opportunity' and a hill start.
Just remember to check the cyclist you passed is still alive after you have passed him - I kept on forgetting