Did you end up going on it/booking it? :) I know this is really very late - but I hardly ever have anything info to offer to anyone, except now as I have actually been to CSM's life drawing short course (it was five days and the one for 16-18 year olds) as well as the animation one.
I'd definitely recommend it! Where I live and the area surrounding there were basically no life drawing classes and I jumped at the opportunity to go on the course as well as the animation one (especially since it was aimed at young people and I suppose I felt a bit intimidated by drawing with older and perhaps more experienced artists). If you're talking about a different/longer course, then yeah it might not exactly be how it was for me, but they should be run pretty similar. I'll share my experience anywho!
Over the course of my 5 days I had three different models, two males and one female. One male was an experienced life model, the other was not, and the female was a professional dancer I believe - so they do give you a good variation of different models to draw. There were a wide range of poses and their length, so it was good at challenging you especially under quicker poses where a few people didn't finish drawing and continued to try and finish it even when the pose changed.
We all had an easel each and varying pieces of charcoal, but if people wanted to draw in pencil then she let them. There's a good balance of freedom and the tutor leading the course - she'd tell us what to focus on, what to think about etc then let us do it. She would walk around and stand behind us as we worked on our easels (a little scary, but of course helpful!) and mention anything she thought we could improve on or that wasn't quite right. A common thing she said going around the room which amused me was 'draw what you see, not what you think you see' which led to a girl finishing the tutor's sentence before she could even say it.
All in all, even though this course was for younger people, it had a very mature sort of sophisticated atmosphere (very different from the CSM animation course!) but I still really enjoyed it and made a few friends who had come from all over the world which is an experience itself. It will provide you with some good practice and possibly even work to put in your portfolio. I probably didn't go through everything because it was a while ago and I'm not sure what else I should mention - but I'm open to any questions anyway.