I was away for the first 2 weeks, so I've only got to attend 7 days so far, but I'm mostly caught up. I've had a maths and engineering test so far, and I've got 2 assignments. The only thing I found somewhat challenging was engineering because I don't think I have ever done mechanics ever up until now.
I think the only people finding prelims hard are the people who have forgotten everything from last year. (idk how because it was all simple and easy)