I enjoyed IREX. Aced it. Found it interesting.
AGK and FP hey Hoff, yep that says it all.
Air Law is another I liked. You gotta be quick on that one! Bit of a challenge.
The process I think is a bit back to front. You do all this study and don't really have any working understanding of it which makes it even harder. I reckon I'd understand or get more out of it now. Having said that I've got no desire to sit any exams ever again (apart from the sims upgrades etc).